WEBVTT
1
00:00:03.850 --> 00:00:06.290
Hi, I'm Wendy Zuckerman, and you're listening to Science Versus
2
00:00:06.320 --> 00:00:11.119
from Gimlet. All right. So we're going to find the bodies,
3
00:00:11.320 --> 00:00:11.919
is that right?
4
00:00:12.759 --> 00:00:13.039
Yes.
5
00:00:14.300 --> 00:00:17.359
I'm driving through the outer suburbs of Seattle with my editor,
6
00:00:17.600 --> 00:00:18.239
Blythe Terrell.
7
00:00:18.480 --> 00:00:19.960
Do-do-do-do-do.
8
00:00:20.940 --> 00:00:23.339
Blythe's been working on Science Versus for about five years,
9
00:00:24.539 --> 00:00:27.769
and yet still can't quite remember the theme song.
10
00:00:28.210 --> 00:00:30.949
Do-do-do-do-do. Do-do-do-do-do-do.
11
00:00:34.390 --> 00:00:37.990
Where we're driving, there's boarded up houses and wire fences.
12
00:00:39.000 --> 00:00:42.500
I guess it's like one degree off a spooky suburb,
13
00:00:42.640 --> 00:00:46.380
I think. If just one ghost walked past, I'd be like,
14
00:00:46.820 --> 00:00:47.460
this is scary.
15
00:00:48.140 --> 00:00:49.479
Yeah, I think that checks out.
16
00:00:50.009 --> 00:00:54.289
And this suburb, with its almost haunted houses, gave way
17
00:00:54.350 --> 00:00:57.210
to an industrial park, which is where we're headed, to
18
00:00:58.109 --> 00:01:00.670
look for one very specific warehouse.
19
00:01:01.840 --> 00:01:02.179
Where is it?
20
00:01:02.810 --> 00:01:04.290
Then the destination is on your right.
21
00:01:06.310 --> 00:01:06.930
On our right.
22
00:01:08.150 --> 00:01:10.709
And then we see it. Okay, here it is. This
23
00:01:10.810 --> 00:01:16.099
nondescript grey building. And inside it, people are doing something
24
00:01:16.120 --> 00:01:23.810
that some find very controversial. And maybe even a little creepy.
25
00:01:23.829 --> 00:01:24.849
Hello, Luke.
26
00:01:25.790 --> 00:01:29.849
We're welcomed by a very friendly fellow with wire-rimmed glasses,
27
00:01:29.930 --> 00:01:33.019
an office shirt and a flannel vest that feels like
28
00:01:33.060 --> 00:01:36.579
he's ready for a tech conference. His name is Micah
29
00:01:36.620 --> 00:01:41.079
Truman and he shows us around. It's this huge, echoey,
30
00:01:41.219 --> 00:01:42.540
industrial-looking space.
31
00:01:43.299 --> 00:01:44.959
Yeah, we're not playing wind in your wings here.
32
00:01:45.319 --> 00:01:48.879
There's large machines whirring in the background and all this
33
00:01:49.019 --> 00:01:53.760
farm stuff, like piles of straw and alfalfa. And they
34
00:01:53.799 --> 00:01:56.540
are going to go inside these containers that we see,
35
00:01:57.219 --> 00:01:59.519
which are about the size of a big fridge lying
36
00:01:59.560 --> 00:02:00.140
on its side.
37
00:02:00.159 --> 00:02:02.030
Yeah, the vessels are here.
38
00:02:02.049 --> 00:02:03.900
So what is it made of?
39
00:02:04.310 --> 00:02:05.430
It's made of a polycarbonate.
40
00:02:05.829 --> 00:02:11.270
It's a polycarbonate that is both incredibly insulating and incredibly strong.
41
00:02:11.289 --> 00:02:15.849
There's a rack of these vessels behind us, stacked three
42
00:02:15.909 --> 00:02:19.919
high and about a dozen across. So picture a warehouse
43
00:02:20.039 --> 00:02:24.460
just full of these vessels. Oh, wow. And what's inside
44
00:02:24.500 --> 00:02:28.979
these vessels isn't just stuff like straw and alfalfa. For
45
00:02:29.020 --> 00:02:32.139
what's happening here to work, we're going to need one
46
00:02:32.379 --> 00:02:33.939
very key ingredient.
47
00:02:34.699 --> 00:02:36.439
Your body would rest up to about here.
48
00:02:36.460 --> 00:02:44.169
Oh, that's right. Your body. Well, we're going to need
49
00:02:44.289 --> 00:02:49.229
a dead human body. Because inside these big vessels... There
50
00:02:49.250 --> 00:02:59.050
are people in them. What's happening here? They're composting human bodies.
51
00:03:00.030 --> 00:03:02.569
You know, like that thing that people do with leftover
52
00:03:02.629 --> 00:03:06.400
scraps at dinner? But this time, they're doing it with us.
53
00:03:07.300 --> 00:03:11.479
Turning bodies into soil. And this whole process, it takes
54
00:03:11.620 --> 00:03:14.439
only a couple of months to get a full human
55
00:03:14.500 --> 00:03:20.830
body into tiny flecks of dirt. At this human composting facility,
56
00:03:20.969 --> 00:03:24.840
all of this was super intriguing. Like Micah showed me
57
00:03:24.939 --> 00:03:27.719
this spot on a composting vessel. It was a vent
58
00:03:27.860 --> 00:03:29.810
on the top of the box about the size of
59
00:03:29.870 --> 00:03:32.969
my fist. And he gave me a simple suggestion.
60
00:03:35.150 --> 00:03:35.710
Put your hand here.
61
00:03:37.889 --> 00:03:38.430
Oh, it's hot.
62
00:03:39.150 --> 00:03:42.009
This is the body transforming into soil.
63
00:03:42.590 --> 00:03:44.310
And it's magic.
64
00:03:46.750 --> 00:03:48.289
It's an absolute miracle.
65
00:03:49.189 --> 00:03:53.150
It's crazy. When you feel that heat, what are you
66
00:03:53.270 --> 00:03:54.250
thinking about?
67
00:03:55.129 --> 00:03:57.409
Oh my gosh, safe journey to you.
68
00:03:57.509 --> 00:04:01.479
I think of it like you're.
69
00:04:01.340 --> 00:04:05.939
Transforming into a new thing, almost butterfly-esque. I'm like, go, go, go.
70
00:04:06.979 --> 00:04:09.259
Go make your transformation.
71
00:04:09.280 --> 00:04:15.080
So this is what we're digging into today. Human composting.
72
00:04:16.500 --> 00:04:19.899
Why are we doing this? What exactly is going on
73
00:04:20.019 --> 00:04:24.430
in that hot vessel? And what happens when cold, hard
74
00:04:24.490 --> 00:04:29.050
science collides with our very complex feelings around death?
75
00:04:30.129 --> 00:04:33.529
When they walk out with the compost, what is it?
76
00:04:33.579 --> 00:04:37.319
Is it still, to you, a human remains?
77
00:04:37.339 --> 00:04:41.379
Completely different. It's not a person. It's not at all.
78
00:04:42.620 --> 00:05:00.379
Composting Humans is coming up just after the break. Welcome back. Today,
79
00:05:00.500 --> 00:05:04.379
we're sticking our science versus shovels into this wild idea,
80
00:05:05.339 --> 00:05:10.579
human composting. And the reason that this is kicking off
81
00:05:10.639 --> 00:05:13.500
now is because it's part of this big push for
82
00:05:13.560 --> 00:05:16.079
us to deal with our dead in ways that are
83
00:05:16.100 --> 00:05:18.639
better for the environment and better for all of us.
84
00:05:19.490 --> 00:05:22.829
It's sometimes called the Green Death Movement. And we got
85
00:05:22.850 --> 00:05:26.029
to talking about all this with Brie Smith. Hello, hello, hello.
86
00:05:26.170 --> 00:05:26.910
How loud do you talk?
87
00:05:27.930 --> 00:05:28.790
I talk this loud.
88
00:05:29.089 --> 00:05:29.750
Talk, talk, talk, talk.
89
00:05:29.870 --> 00:05:32.449
who' s worked in the funeral industry for more than a decade.
90
00:05:32.470 --> 00:05:34.129
I do feel like you're quite measured.
91
00:05:34.149 --> 00:05:37.870
I think that's a trick of the trade, is to
92
00:05:37.910 --> 00:05:38.689
be even-keeled.
93
00:05:38.709 --> 00:05:41.970
But Bree has been around dead bodies her whole life.
94
00:05:43.430 --> 00:05:46.220
Her mum was a make-up artist who was sometimes called
95
00:05:46.240 --> 00:05:49.079
to do prep for funerals. So she'd go down to
96
00:05:49.100 --> 00:05:52.439
the local morgue and put make-up on the dead. And
97
00:05:52.480 --> 00:05:55.699
little Bree would tag along, see what mum was up to.
98
00:05:56.670 --> 00:05:59.449
And I remember her curling old lady hair. I just
99
00:05:59.490 --> 00:06:02.170
like have distinct memories of her with like little tiny
100
00:06:02.230 --> 00:06:06.110
curling irons and I just saw her take them from
101
00:06:06.329 --> 00:06:08.930
looking dead to looking a lot less dead and it
102
00:06:08.970 --> 00:06:09.829
was so beautiful.
103
00:06:10.790 --> 00:06:13.470
Brie grew up to be a funeral director which meant
104
00:06:13.790 --> 00:06:16.569
she was now dealing with dead bodies all day every
105
00:06:16.610 --> 00:06:19.730
day at work. And she told us that there are
106
00:06:19.769 --> 00:06:24.189
some definite downsides to how we typically handle them. Like
107
00:06:24.589 --> 00:06:28.310
Take cremation, which is super common in the US. Blythe
108
00:06:28.629 --> 00:06:29.230
asked her about it.
109
00:06:30.350 --> 00:06:32.009
How many people do you think you've cremated?
110
00:06:32.949 --> 00:06:33.930
Thousands, probably.
111
00:06:33.970 --> 00:06:36.910
I mean, at least over a thousand, yeah. I really
112
00:06:36.990 --> 00:06:39.410
don't like cremation. I would do anything to any of
113
00:06:39.490 --> 00:06:40.790
my loved ones besides that.
114
00:06:43.850 --> 00:06:45.529
One of the reasons that Brie doesn't like it is
115
00:06:46.189 --> 00:06:51.040
because cremation isn't good for the planet. When we burn bodies,
116
00:06:51.379 --> 00:06:54.759
the carbon inside us goes up into the air. It's
117
00:06:54.819 --> 00:06:58.300
estimated that in the U.S., cremation emits about a billion
118
00:06:58.379 --> 00:07:02.860
pounds of CO2 each year. Metals in our body, like
119
00:07:02.980 --> 00:07:06.319
mercury tooth fillings, they also go up in smoke.
120
00:07:07.620 --> 00:07:10.610
Sometimes I would be cremating and black smoke would start
121
00:07:10.750 --> 00:07:14.410
coming out of the fluke. So I felt very uncomfortable.
122
00:07:19.689 --> 00:07:23.310
And then there's embalming, which Americans often do to bodies
123
00:07:23.370 --> 00:07:28.350
before burying them. Embalming involves injecting formaldehyde into a corpse
124
00:07:28.430 --> 00:07:32.920
to preserve it. But formaldehyde can be dangerous. It's classified
125
00:07:32.959 --> 00:07:36.139
as a carcinogen. And embalmers are at a higher risk
126
00:07:36.240 --> 00:07:40.379
of some cancers, like leukemia and pancreatic cancer, compared to
127
00:07:40.399 --> 00:07:44.920
the rest of the population. And Brie, she inhaled this
128
00:07:44.939 --> 00:07:45.839
stuff for years.
129
00:07:47.019 --> 00:07:51.290
When you embalm formaldehyde, vapors will come up and.
130
00:07:53.920 --> 00:07:55.899
I would walk out of the prep room and my
131
00:07:55.959 --> 00:07:58.899
nose hairs would be stiff from like.
132
00:07:59.540 --> 00:08:00.939
Oh my God. Yeah.
133
00:08:01.310 --> 00:08:03.170
I mean, and that is actually.
134
00:08:03.209 --> 00:08:04.310
The embalming fluid.
135
00:08:04.089 --> 00:08:04.949
Went up into your nose.
136
00:08:05.870 --> 00:08:07.930
It was like in your nose and you would go
137
00:08:07.990 --> 00:08:10.170
home and you'd be like, it'd be dinner time and
138
00:08:10.189 --> 00:08:13.569
you could still kind of smell the embalming fluid.
139
00:08:14.629 --> 00:08:16.610
So a lot of what we're doing now to our
140
00:08:16.649 --> 00:08:26.040
dead bodies, it isn't great. Enter greener, and less chemical-y options.
141
00:08:27.399 --> 00:08:29.899
Because you see, more and more people are wanting things
142
00:08:30.199 --> 00:08:33.179
like a natural burial, which is where you get buried
143
00:08:33.379 --> 00:08:37.259
often in a graveyard, but without chemicals, which is something
144
00:08:37.360 --> 00:08:40.419
that's always been common in some cultures. And it is
145
00:08:40.440 --> 00:08:43.259
a good idea, particularly if you're worried about the environment.
146
00:08:44.720 --> 00:08:48.500
But what makes people excited about human composting is that
147
00:08:49.039 --> 00:08:52.809
instead of taking perhaps years for a body to decompose,
148
00:08:53.710 --> 00:08:56.149
This could be done in just a few months. And
149
00:08:56.169 --> 00:08:58.330
then you could take that soil, which is full of
150
00:08:58.429 --> 00:09:01.629
nutrients from our body, and use it wherever you like,
151
00:09:02.230 --> 00:09:06.840
to grow a garden or restore degraded land. When Bree
152
00:09:06.879 --> 00:09:11.440
started really thinking about human composting, she was excited. And
153
00:09:11.480 --> 00:09:14.059
she ended up joining Micah's team, who we met at
154
00:09:14.100 --> 00:09:14.879
the start of the show.
155
00:09:15.460 --> 00:09:18.659
Every little bit of scientist inside of me was enthralled
156
00:09:18.700 --> 00:09:21.500
with that entire process. You know, trying to figure out
157
00:09:21.820 --> 00:09:22.139
how to.
158
00:09:23.399 --> 00:09:27.129
This takes us to our next question. How does it happen?
159
00:09:28.370 --> 00:09:31.610
How do you turn a stiff into soil in just
160
00:09:31.629 --> 00:09:38.679
a couple of months? Well, the brains behind this whole
161
00:09:38.779 --> 00:09:43.759
human composting push is Katrina Spade. So Blythe and I
162
00:09:43.799 --> 00:09:45.519
met Katrina at a park in Seattle.
163
00:09:45.779 --> 00:09:46.220
Hello, Ducky.
164
00:09:46.720 --> 00:09:49.200
Where we found out the details of how we are
165
00:09:49.279 --> 00:09:50.450
composting humans.
166
00:09:50.970 --> 00:09:51.470
Hello. Hello.
167
00:09:51.490 --> 00:09:51.950
Thank you.
168
00:09:53.679 --> 00:09:55.610
We found a cozy little spot to sit in.
169
00:09:55.750 --> 00:09:57.990
Is that a dead rat?
170
00:09:58.009 --> 00:10:02.480
Got to chatting. So about a decade ago, Katrina, who's
171
00:10:02.580 --> 00:10:06.120
trained as an architect, started thinking about what she's going
172
00:10:06.139 --> 00:10:09.679
to do with her body when she eventually dies. And
173
00:10:09.700 --> 00:10:12.879
she started looking into those options of burial and cremation
174
00:10:12.899 --> 00:10:14.460
and was like.
175
00:10:14.799 --> 00:10:16.539
This stuff hasn't changed in, like, 100 years. Why?
176
00:10:16.559 --> 00:10:16.629
Why?
177
00:10:18.769 --> 00:10:19.870
Is this the best we can do?
178
00:10:19.889 --> 00:10:23.009
And she keeps thinking about it, talking to her friends
179
00:10:23.080 --> 00:10:26.529
about it, including one mate who was into composting.
180
00:10:27.080 --> 00:10:28.980
And she asked me if I'd heard of the fact
181
00:10:29.000 --> 00:10:32.639
that farmers compost whole cows. And I will say that
182
00:10:32.659 --> 00:10:34.600
it was kind of like a light bulb, because if
183
00:10:34.620 --> 00:10:36.700
you can compost a cow, you can probably compost a
184
00:10:36.740 --> 00:10:37.159
human being.
185
00:10:37.799 --> 00:10:41.740
Yeah, some farmers compost animals like pigs, cows and chickens.
186
00:10:42.460 --> 00:10:45.720
This happens for a few reasons, like sometimes if the
187
00:10:45.779 --> 00:10:49.129
animal is sick and can't be eaten. And this was
188
00:10:49.169 --> 00:10:52.730
Katrina's jumping off point. She was like, if we know
189
00:10:52.769 --> 00:10:55.929
that we can do this for farm animals, how do
190
00:10:55.970 --> 00:11:01.570
we do it for human animals? Katrina starts reading into
191
00:11:01.629 --> 00:11:04.179
it and she finds out that the science of all
192
00:11:04.220 --> 00:11:08.480
this is actually pretty fun. So to start with, the
193
00:11:08.580 --> 00:11:11.580
real heroes of composting are microbes.
194
00:11:12.580 --> 00:11:16.360
The microbes come from the air and they're on us
195
00:11:16.399 --> 00:11:19.120
right now as we speak and they're on the dead people.
196
00:11:19.940 --> 00:11:21.850
I talked to Micah Truman about this too.
197
00:11:22.519 --> 00:11:23.629
It's gorgeous, right?
198
00:11:23.889 --> 00:11:26.350
And so these microbes kick in and they begin the
199
00:11:26.389 --> 00:11:30.169
transformation process. They love heat and moisture and oxygen.
200
00:11:32.840 --> 00:11:37.399
These teeny tiny microbes, mostly bacteria, but also other stuff
201
00:11:37.580 --> 00:11:42.879
like fungi, basically get unleashed after we die, oozing out
202
00:11:42.960 --> 00:11:46.879
chemicals that break down organic stuff, like a dead cow
203
00:11:47.179 --> 00:11:50.259
or a corpse. Then what comes out the other side
204
00:11:50.279 --> 00:11:55.539
is soil. But to do their jobs, microbes need just
205
00:11:55.700 --> 00:11:59.250
the right environment. Like what Micah said, they love heat,
206
00:11:59.570 --> 00:12:05.450
moisture and oxygen. That oxygen encourages the right kind of
207
00:12:05.529 --> 00:12:08.590
microbes to thrive so that you really get the compost
208
00:12:08.649 --> 00:12:12.379
going What we also are going to need here is
209
00:12:12.399 --> 00:12:17.730
the right balance of carbon and nitrogen. Humans, horses and pigs, well,
210
00:12:17.970 --> 00:12:21.470
we're all nitrogen rich. So to get a good compost,
211
00:12:21.909 --> 00:12:24.049
you need to add stuff with a bunch of carbon
212
00:12:24.070 --> 00:12:29.070
in it. Think wood chips, alfalfa or straw. So Katrina's
213
00:12:29.129 --> 00:12:33.899
reading all this and she's like, huh, we could totally
214
00:12:33.960 --> 00:12:34.879
do this with people.
215
00:12:37.340 --> 00:12:40.120
There was no question if we could make a human
216
00:12:40.179 --> 00:12:44.980
body compost, right? There's no question. I'm not kidding when
217
00:12:45.019 --> 00:12:46.419
I say if you can compost a cow, you can
218
00:12:46.460 --> 00:12:47.100
compost a human.
219
00:12:47.879 --> 00:12:51.570
But now, Katrina had to figure out exactly how she
220
00:12:51.590 --> 00:12:55.169
was going to make this work in people. Because when
221
00:12:55.210 --> 00:12:58.750
farmers compost a bunch of, say, chickens, they can just
222
00:12:58.830 --> 00:13:01.049
pile them on top of each other with some wood
223
00:13:01.090 --> 00:13:05.340
chips or whatnot. And at first, Katrina was like, maybe
224
00:13:05.379 --> 00:13:06.519
we could do something like that.
225
00:13:07.809 --> 00:13:11.860
Well, early on, I had a vision in architecture school
226
00:13:12.080 --> 00:13:16.100
for a large collective core composter. It was a big
227
00:13:16.159 --> 00:13:18.059
building in which all the bodies would go together.
228
00:13:18.779 --> 00:13:22.600
But Katrina thought about it a touch more and was like, well,
229
00:13:22.919 --> 00:13:27.149
humans are sentimental creatures. We like to respect our dead.
230
00:13:27.889 --> 00:13:29.490
If you're saying, like, we're going to make a giant
231
00:13:29.529 --> 00:13:31.450
building where you put all the bodies together, it starts
232
00:13:31.470 --> 00:13:33.049
to sound kind of scary. That's gross.
233
00:13:33.250 --> 00:13:33.429
No.
234
00:13:35.190 --> 00:13:38.649
But if you're like, you, when you die, you will
235
00:13:38.690 --> 00:13:42.610
be laid to rest in this one vessel. Consider it
236
00:13:42.629 --> 00:13:45.409
a hotel for the dead. It's just for you. And
237
00:13:45.429 --> 00:13:47.490
your body will stay there for about 30 days with us.
238
00:13:48.070 --> 00:13:48.809
And then you'll be soil.
239
00:13:50.289 --> 00:13:54.600
That's a much better pitch. Katrina decided to try it out.
240
00:13:55.230 --> 00:13:57.990
She joined forces with a team of nerds at Washington
241
00:13:58.009 --> 00:14:01.840
State University to help her iron out the details. And together,
242
00:14:02.059 --> 00:14:05.080
they concocted a mix of alfalfa, straw and wood chips
243
00:14:05.559 --> 00:14:11.480
to tuck around people's bodies in individual vessels. And in 2018,
244
00:14:11.480 --> 00:14:14.470
they started a pilot study to test this all out
245
00:14:14.500 --> 00:14:19.690
in humans. So now they just needed some humans willing
246
00:14:19.769 --> 00:14:23.080
to be guinea pigs for all this. The first people
247
00:14:23.379 --> 00:14:25.990
to boldly go into their hotel for the dead and
248
00:14:26.029 --> 00:14:31.909
be composted. And it turned out, finding them wasn't too hard.
249
00:14:32.990 --> 00:14:33.649
Look at this lady.
250
00:14:34.210 --> 00:14:36.909
She was so great. Oh, can you describe what we're
251
00:14:36.929 --> 00:14:37.370
looking at?
252
00:14:37.750 --> 00:14:40.049
Yeah, this is a picture of Darby sitting in her
253
00:14:40.129 --> 00:14:43.419
living room in her wheelchair. On the side of the
254
00:14:43.440 --> 00:14:46.139
wheelchair is a bumper sticker that says, War is the
255
00:14:46.200 --> 00:14:50.139
real enemy. And she's smiling very broadly.
256
00:14:52.659 --> 00:14:55.639
Darby was 93 when she died. And towards the end
257
00:14:55.679 --> 00:14:58.059
of her life, she read about Katrina's work from an
258
00:14:58.159 --> 00:15:00.620
article in the paper. And she loved the idea.
259
00:15:00.639 --> 00:15:05.840
It was perfect for her to be one of the first. She,
260
00:15:05.879 --> 00:15:08.519
in fact, would call me on the phone and she'd
261
00:15:08.539 --> 00:15:10.240
be like, why is it taking you so long? This
262
00:15:10.279 --> 00:15:12.820
was obviously before she died. And at one point I
263
00:15:12.820 --> 00:15:15.000
was like, you know, Darby, I know that you mean well,
264
00:15:15.100 --> 00:15:18.320
but I'm working really hard. Like I'm doing my best here.
265
00:15:18.980 --> 00:15:20.659
So if you could just be a little gentler.
266
00:15:22.190 --> 00:15:26.129
Darby joined Katrina's pilot study. She became one of six
267
00:15:26.190 --> 00:15:29.649
people who donated their bodies for it. They were all
268
00:15:29.710 --> 00:15:33.070
placed in these big cylinders that were black and plastic.
269
00:15:34.009 --> 00:15:38.629
And to balance out Darby's nitrogen-rich body, they carefully added
270
00:15:38.700 --> 00:15:40.899
in that mix of carbony stuff.
271
00:15:44.000 --> 00:15:48.399
We had laid a bed of alfalfa, straw and wood
272
00:15:48.419 --> 00:15:53.860
chips into this vessel and then... placed her body onto
273
00:15:53.960 --> 00:15:56.299
it with some you know a couple of us adults
274
00:15:56.860 --> 00:16:00.759
because a body can be hard to maneuver and laid
275
00:16:00.799 --> 00:16:03.899
her on this bed and then then we covered her
276
00:16:03.960 --> 00:16:05.500
with more of the same i think at that point
277
00:16:05.519 --> 00:16:10.429
we were using pitchforks really farm-esque you know and so
278
00:16:10.490 --> 00:16:13.289
covered her with more and then finally covered her face
279
00:16:13.350 --> 00:16:16.070
and then and that was it and kind of um
280
00:16:16.210 --> 00:16:20.610
i know i did read a poem Life should not
281
00:16:20.639 --> 00:16:23.009
be a journey to the grave with the intention of
282
00:16:23.070 --> 00:16:27.350
arriving safely in a pretty and well-preserved body, but rather
283
00:16:27.409 --> 00:16:31.750
to skid in broadside in a cloud of smoke, thoroughly
284
00:16:31.870 --> 00:16:36.990
used up, totally worn out, and loudly proclaiming, wow, what
285
00:16:37.029 --> 00:16:42.480
a ride. On the day when we actually laid her
286
00:16:42.509 --> 00:16:45.659
body into a vessel, this is going to sound so cheesy,
287
00:16:45.740 --> 00:16:49.169
there was a double rainbow. I was like, of course, Darby,
288
00:16:49.450 --> 00:16:49.870
of course.
289
00:16:54.210 --> 00:16:57.100
Over the coming weeks, the researchers in the study carefully
290
00:16:57.169 --> 00:17:01.240
managed the compost vessels, adding air so it had enough oxygen,
291
00:17:01.759 --> 00:17:04.740
making sure the moisture levels and the temperature was just right,
292
00:17:05.359 --> 00:17:08.220
and then regularly rotating them to mix it all up.
293
00:17:09.279 --> 00:17:11.920
After over a month, Katrina came back to see Darby.
294
00:17:12.720 --> 00:17:14.799
And where there had been a body and a bunch
295
00:17:14.839 --> 00:17:19.839
of alfalfa straw and wood chips... Now there was mostly dirt.
296
00:17:20.859 --> 00:17:22.279
Katrina grabbed a handful.
297
00:17:22.299 --> 00:17:28.240
It just was a really nice way to complete her journey.
298
00:17:28.900 --> 00:17:31.220
But yeah, I mean, it was really powerful to see
299
00:17:31.240 --> 00:17:31.980
that it worked.
300
00:17:34.779 --> 00:17:38.440
It wasn't just soil in these bins. Even seven weeks
301
00:17:38.539 --> 00:17:42.700
into the process, there were some large bone fragments. Our
302
00:17:42.720 --> 00:17:46.559
bones are tougher for microbes to break down than our fleshier,
303
00:17:46.779 --> 00:17:51.490
gooier bits. Katrina decided that in the future, she could
304
00:17:51.529 --> 00:17:54.190
break the bones down using a similar machine to what
305
00:17:54.230 --> 00:17:57.910
crematories use and then return them to the vessel so
306
00:17:57.930 --> 00:18:02.559
that the microbes could have another go at them. Overall,
307
00:18:03.230 --> 00:18:05.700
Katrina was feeling pretty good about all this.
308
00:18:06.859 --> 00:18:10.799
Do you think that you were the first people to
309
00:18:10.839 --> 00:18:13.579
kind of intentionally compost a human body in this way?
310
00:18:14.779 --> 00:18:19.140
I think so. How does that feel? It's really, it's really,
311
00:18:20.279 --> 00:18:24.559
it's so satisfying. It feels amazing. Yeah, it's really kind
312
00:18:24.579 --> 00:18:25.640
of moving to me.
313
00:18:27.279 --> 00:18:32.109
So, everything seems to be going to plan. Except that
314
00:18:32.119 --> 00:18:35.990
somewhere in the midst of all this sciencing, Katrina ran
315
00:18:36.009 --> 00:18:38.809
into a bit of a snag. She got an email
316
00:18:38.849 --> 00:18:42.349
from a law professor telling her, I like what you're.
317
00:18:42.250 --> 00:18:43.990
Trying to do, but you should know it's totally illegal.
318
00:18:45.210 --> 00:18:45.589
Damn it.
319
00:18:46.700 --> 00:18:50.480
Unsurprisingly, states in the U.S. have very strict rules about
320
00:18:50.519 --> 00:18:53.200
the things you can and can't do with a dead body.
321
00:18:53.220 --> 00:18:58.720
And at the time, you couldn't compost one. So Katrina
322
00:18:58.759 --> 00:19:01.599
headed to the capital of Washington state to try to
323
00:19:01.660 --> 00:19:04.700
change that. And she brought along some props.
324
00:19:05.720 --> 00:19:07.500
A little baggie of cow compost.
325
00:19:07.799 --> 00:19:08.619
Like a party favor.
326
00:19:08.880 --> 00:19:11.079
Like a party favor. It was really cute. And then
327
00:19:11.099 --> 00:19:14.740
we would bring them to Olympia and then kind of
328
00:19:14.759 --> 00:19:18.799
walk the halls. And any legislator who wanted could have
329
00:19:19.000 --> 00:19:20.660
a little box of this stuff and take a look
330
00:19:20.700 --> 00:19:22.910
at it. And some would say like, thanks, but no thanks.
331
00:19:23.170 --> 00:19:24.920
And then some people would be like, can I smell it?
332
00:19:24.990 --> 00:19:26.349
And I'm like, of course you can smell it. It
333
00:19:26.410 --> 00:19:27.950
smells great. Like soil.
334
00:19:29.250 --> 00:19:32.529
As a side note, That earthy smell is called geosmin,
335
00:19:33.109 --> 00:19:36.579
and rather wonderfully, it's made by some happy microbes that
336
00:19:36.599 --> 00:19:40.500
are in the compost pile, releasing little baby spores into
337
00:19:40.519 --> 00:19:45.509
the soil. That's what makes soil smell so nice. And so,
338
00:19:45.869 --> 00:19:47.750
just a few years ago, in 2019, Katrina watched as.
339
00:19:50.180 --> 00:19:55.740
Her own little baby human composting became legal in Washington.
340
00:19:56.759 --> 00:19:59.660
The day that the governor signed the bill I had
341
00:19:59.680 --> 00:20:01.279
my kids in little suits I was in a suit
342
00:20:01.319 --> 00:20:03.829
my girlfriend was there with me And we're standing, like
343
00:20:03.869 --> 00:20:05.710
you get your official picture with the governor as he
344
00:20:05.779 --> 00:20:08.279
is signing the bill. And we're just like grinning. Like
345
00:20:08.319 --> 00:20:11.599
the picture is like, we're just, all of us are
346
00:20:11.619 --> 00:20:16.079
just like beaming. So that was, that was kind of
347
00:20:16.119 --> 00:20:17.089
like the pinnacle right there.
348
00:20:17.109 --> 00:20:23.089
And now when someone dies, they can be composted. And
349
00:20:23.130 --> 00:20:25.750
it's not just in Washington, but other states have started
350
00:20:25.789 --> 00:20:28.970
approving this too. It costs about as much or even
351
00:20:28.990 --> 00:20:32.990
less than getting cremated. You send your body in. They
352
00:20:33.130 --> 00:20:37.490
put you in a container, add things like alfalfa and straw,
353
00:20:37.519 --> 00:20:43.519
and away you go. And once it's done, your family
354
00:20:43.579 --> 00:20:48.920
will end up with all this soil. But as this
355
00:20:49.039 --> 00:20:52.299
has started to take off, a couple of concerns have
356
00:20:52.359 --> 00:20:55.720
come up. And a big one that scientists are pondering
357
00:20:56.599 --> 00:21:01.369
is whether this human compost is safe. Because a compost
358
00:21:01.410 --> 00:21:05.150
pile is full of bacteria, right? And if a person
359
00:21:05.190 --> 00:21:09.319
dies of some nasty disease, could that be in the compost?
360
00:21:11.140 --> 00:21:13.839
After the break, we follow the journey of more than
361
00:21:13.880 --> 00:21:26.569
a million composted chickens to find out. Hey, it's Wendy
362
00:21:26.690 --> 00:21:28.829
from Science Versus, and I want to tell you about
363
00:21:28.910 --> 00:21:32.230
a podcast that I love, Science Friday. They cover all
364
00:21:32.269 --> 00:21:35.210
sorts of amazing things in the weird and wonderful world
365
00:21:35.230 --> 00:21:39.009
of science, from how concussions affect our brain to the
366
00:21:39.130 --> 00:21:42.890
inner secrets of a snake with a spider on its tail.
367
00:21:42.990 --> 00:21:45.269
It's a lot of news that you can use and
368
00:21:45.309 --> 00:21:47.369
some that you can't, but you're going to love anyway.
369
00:21:47.589 --> 00:21:51.109
It's hosted by Ira Flato and Phyllis. Flora Lichtman, who
370
00:21:51.210 --> 00:21:53.750
is an old friend of the show and loves a
371
00:21:53.769 --> 00:21:56.480
pun as much as we do. Science Friday is on
372
00:21:56.680 --> 00:22:07.960
every day wherever you get your podcasts. Welcome back. So,
373
00:22:08.460 --> 00:22:10.640
we just found out how to compost a human. A
374
00:22:11.420 --> 00:22:15.690
bit of alfalfa, straw and wood chips. Bada bing, bada boom.
375
00:22:16.890 --> 00:22:21.519
But now we want to know... Is this bacteria-stuffed pile
376
00:22:21.559 --> 00:22:27.269
of dirt actually safe to take home? So to find out,
377
00:22:27.549 --> 00:22:30.829
we called up Thomas Bass at Montana State University.
378
00:22:31.430 --> 00:22:33.490
Casually go by Tommy, which is just fine here.
379
00:22:34.130 --> 00:22:37.829
Tommy knows a lot about what happens to nasty pathogens
380
00:22:37.970 --> 00:22:41.910
inside compost heaps because he works with farmers. And as
381
00:22:41.950 --> 00:22:44.759
part of his job, when farmers get an outbreak of
382
00:22:44.799 --> 00:22:47.980
some disease like bird flu... He's part of the team
383
00:22:48.009 --> 00:22:50.630
that works out, what are we going to do here?
384
00:22:50.650 --> 00:22:55.329
And kind of surprisingly, Tommy told us that a lot
385
00:22:55.349 --> 00:22:58.410
of the time these farms are turning to composting their
386
00:22:58.450 --> 00:23:02.009
infected animals to deal with the outbreak. And that's because
387
00:23:02.970 --> 00:23:09.369
composting can actually kill pathogens. Like, Tommy told us about
388
00:23:09.390 --> 00:23:12.910
this huge chicken farm with over a million chickens. Bird
389
00:23:12.950 --> 00:23:16.150
flu broke out and all the chickens were to be composted.
390
00:23:17.160 --> 00:23:19.890
And so how much compost would that make?
391
00:23:22.910 --> 00:23:28.670
A lot. We did wind rows, which are long compost
392
00:23:28.769 --> 00:23:32.049
piles that are maybe 10 to 12 feet wide, six
393
00:23:32.069 --> 00:23:35.109
feet high and hundreds of feet long.
394
00:23:36.109 --> 00:23:39.190
It was roughly the size of a football field. They
395
00:23:39.230 --> 00:23:42.980
laid the carbon rich materials down like wood chips. And
396
00:23:43.000 --> 00:23:46.279
then all those dead chickens went in the pile.
397
00:23:50.130 --> 00:23:52.420
Some of my colleagues call it a Twinkie or whatnot.
398
00:23:53.359 --> 00:23:58.420
You have then a mix of the potentially infected material.
399
00:23:58.640 --> 00:24:02.339
Oh, that's the cream? That's the cream of the Twinkie?
400
00:24:03.259 --> 00:24:04.619
The infected chicken?
401
00:24:04.859 --> 00:24:06.000
The filling, if you will.
402
00:24:07.140 --> 00:24:11.460
And what's pretty remarkable here is that this compost Twinkie
403
00:24:12.000 --> 00:24:16.069
is going to become a virus-killing machine. And here's a
404
00:24:16.109 --> 00:24:19.559
big reason why. When the microbes get to work, it
405
00:24:19.599 --> 00:24:21.559
can get hot in that compost pile.
406
00:24:22.180 --> 00:24:26.809
When those microorganisms start doing their work and metabolizing and
407
00:24:26.880 --> 00:24:28.869
ripping apart carbon bonds and whatnot.
408
00:24:29.049 --> 00:24:32.730
How hot does it get in a big carcass compost pile?
409
00:24:32.970 --> 00:24:35.589
Generally, within a couple of days, you'll see temperatures 130, 140,
410
00:24:35.569 --> 00:24:38.589
you know, 150 degrees Fahrenheit. Wow, that is cool that
411
00:24:38.650 --> 00:24:39.670
that is just the microbes.
412
00:24:39.390 --> 00:24:39.630
Hard at work.
413
00:24:39.650 --> 00:24:39.930
Yeah, yeah.
414
00:24:47.170 --> 00:24:49.410
One scientist told us that it got so hot in
415
00:24:49.430 --> 00:24:52.650
his compost pile that he actually cooked a roast dinner
416
00:24:52.710 --> 00:24:57.119
in there. Like, just for fun. He said it was delicious.
417
00:24:59.160 --> 00:25:01.960
But the point is that we have data that shows
418
00:25:02.039 --> 00:25:04.539
that when it gets hot enough over a certain period
419
00:25:04.559 --> 00:25:08.980
of time, lots of different dangerous pathogens struggle to survive.
420
00:25:09.910 --> 00:25:13.710
You know, it destroys such a wide range of pathogens,
421
00:25:13.809 --> 00:25:19.579
foot and mouth disease, avian influenza, plenty of bacteria, salmonella.
422
00:25:20.519 --> 00:25:23.740
According to the USDA, if your compost pile is around
423
00:25:23.740 --> 00:25:29.119
130 degrees Fahrenheit, which is roughly 55 Celsius, and it
424
00:25:29.180 --> 00:25:32.779
stays that way for at least three days, your avian
425
00:25:32.819 --> 00:25:37.829
flu should be a cock. And Katrina says that at
426
00:25:37.910 --> 00:25:41.829
her human composting facility, the vessels do get that hot.
427
00:25:42.730 --> 00:25:46.970
If you have that environment so tuned that the microbes
428
00:25:47.309 --> 00:25:50.809
are so happy that you're seeing temperatures, which is the
429
00:25:50.869 --> 00:25:54.819
indication of happiness for those microbes, we see the temperatures
430
00:25:55.019 --> 00:25:56.900
jump to 150 sometimes on day two.
431
00:25:58.220 --> 00:25:58.519
Wow.
432
00:25:58.539 --> 00:26:04.019
From cool. But although compost piles can kill a bunch
433
00:26:04.039 --> 00:26:08.089
of different pathogens … They're not John Wick. You can
434
00:26:08.130 --> 00:26:12.230
have some survivors. Because certain kinds of nasties, they can
435
00:26:12.289 --> 00:26:15.470
handle the heat of a compost pile. Like researchers have
436
00:26:15.509 --> 00:26:20.160
found that the bacteria that causes tuberculosis, that can survive.
437
00:26:21.019 --> 00:26:25.000
So can prions, those sturdy bastards that cause mad cow disease.
438
00:26:25.980 --> 00:26:29.180
And because of this, the law in Washington and other
439
00:26:29.200 --> 00:26:33.130
states says that at places like Katrina's They're not allowed
440
00:26:33.170 --> 00:26:37.220
to compost people who have died from particular diseases. They've
441
00:26:37.240 --> 00:26:44.279
also got to test the compost for certain bacteria. And
442
00:26:44.319 --> 00:26:48.299
big picture, Tommy says that even if human composting got
443
00:26:48.460 --> 00:26:52.140
really big, like thousands of people getting composted, tons of
444
00:26:52.180 --> 00:26:56.440
this stuff strewn across the landscape, as long as these
445
00:26:56.509 --> 00:26:59.950
companies are hitting those temperatures that we talked about and
446
00:27:00.150 --> 00:27:05.180
regularly testing their heap, for nasty bacteria, then he feels
447
00:27:05.200 --> 00:27:05.869
pretty good about it.
448
00:27:06.559 --> 00:27:09.319
So, you know, we're not seeing, you know, all the
449
00:27:10.319 --> 00:27:15.180
millions of tons of agricultural and food waste, including whole
450
00:27:15.309 --> 00:27:20.990
animals that has been composted, you know, forever. There's not
451
00:27:21.089 --> 00:27:26.109
evidence that it's posing a significant risk.
452
00:27:26.509 --> 00:27:26.789
Right.
453
00:27:26.829 --> 00:27:33.240
So in that, you know, football field... sized compost that
454
00:27:33.279 --> 00:27:37.700
you helped build for that huge chicken farm, all that
455
00:27:37.759 --> 00:27:40.759
compost then would have been used somewhere, right? And did
456
00:27:40.819 --> 00:27:44.599
that start an outbreak of avian flu?
457
00:27:45.079 --> 00:27:45.900
Right, it did not.
458
00:27:46.700 --> 00:27:49.700
And bottom line, Tommy told us that if he was
459
00:27:49.740 --> 00:27:54.650
given some burlap bags full of human compost, he'd gladly
460
00:27:54.710 --> 00:27:55.750
put them over his flowers.
461
00:27:58.849 --> 00:28:01.650
Yeah, we've got some Gerber daisies that come back, and
462
00:28:01.759 --> 00:28:05.039
we've got sunflowers we'll replant.
463
00:28:05.640 --> 00:28:06.740
So you'd put it on the daisies?
464
00:28:06.759 --> 00:28:09.119
Yeah, and that just seems nice, right? And I just
465
00:28:09.160 --> 00:28:11.619
don't know that I'd put it on the tomatoes. It's
466
00:28:11.740 --> 00:28:15.029
almost like a— it would be like communion, right? Like, all right,
467
00:28:15.049 --> 00:28:18.599
kids— Here's the tomatoes, and there's a little bit of
468
00:28:18.619 --> 00:28:19.440
grandpa in there.
469
00:28:24.099 --> 00:28:27.180
So tell me, so why wouldn't it go on the
470
00:28:27.200 --> 00:28:29.700
tomatoes other than the slight creep factor?
471
00:28:30.299 --> 00:28:31.289
That's the only reason.
472
00:28:31.720 --> 00:28:32.349
Oh, really?
473
00:28:32.549 --> 00:28:36.210
It's not because you're worried about pathogens, just the creep factor?
474
00:28:36.430 --> 00:28:37.289
No, no.
475
00:28:38.670 --> 00:28:41.210
It's safe, you know, but there's always, I feel like,
476
00:28:41.329 --> 00:28:43.529
a leap of faith in science. We look at the
477
00:28:43.569 --> 00:28:47.779
body of evidence— Nothing is ever certain in science. But,
478
00:28:47.799 --> 00:28:50.579
you know, I believe it to be very, very safe.
479
00:28:51.779 --> 00:28:54.069
Some other academics that we talked to about this were
480
00:28:54.119 --> 00:28:57.730
also pretty confident that it would be safe. But some
481
00:28:57.750 --> 00:29:01.750
were like, maybe don't put human compost on stuff that's
482
00:29:01.789 --> 00:29:04.329
going to go in your mouth. Would you do this
483
00:29:04.349 --> 00:29:06.880
for yourself? Would you get human composted?
484
00:29:07.119 --> 00:29:10.460
Yeah, I would. And I talked to my wife a
485
00:29:10.480 --> 00:29:14.460
little bit about it. All of our carbon... can be
486
00:29:14.500 --> 00:29:19.230
sequestered back into the earth and all of our proteins
487
00:29:19.289 --> 00:29:24.589
and nitrogen and nutrients, calcium and phosphorus are valuable to
488
00:29:24.789 --> 00:29:27.609
healthy soils. And to me, it's a nicer idea than
489
00:29:27.670 --> 00:29:34.039
a super expensive velvety coffin in a cemetery. One of
490
00:29:34.059 --> 00:29:37.180
the most expensive pieces of furniture anybody will ever buy
491
00:29:37.720 --> 00:29:39.640
to be put in a vault six feet under.
492
00:29:42.210 --> 00:29:46.039
We don't know if human composting is the most environmentally
493
00:29:46.119 --> 00:29:49.319
friendly way to deal with our dead. It's just so new.
494
00:29:50.519 --> 00:29:52.920
But we do know that by putting our carbon in
495
00:29:52.940 --> 00:29:56.180
the earth, we're not pumping it into the atmosphere like
496
00:29:56.220 --> 00:30:01.079
we do with cremation. After all of this, Blythe and
497
00:30:01.140 --> 00:30:04.720
I just really wanted to know what this compost looked like,
498
00:30:06.000 --> 00:30:11.380
smelled like. So while we were at the composting place
499
00:30:11.420 --> 00:30:14.450
that Micah runs, we asked if we could see it.
500
00:30:15.549 --> 00:30:16.130
And he said yes.
501
00:30:16.150 --> 00:30:18.930
Yeah, why don't we open it just so you can
502
00:30:18.970 --> 00:30:19.230
take a.
503
00:30:19.190 --> 00:30:21.049
Sniff of what we have. Okay.
504
00:30:22.250 --> 00:30:25.490
Micah and the team pulled out a blue container about
505
00:30:25.509 --> 00:30:29.690
the size of those big blue recycling bins. And inside
506
00:30:29.759 --> 00:30:33.319
it is a human. Well, it was a human just
507
00:30:33.359 --> 00:30:36.759
a few weeks ago. Now it's compost. It came from
508
00:30:36.799 --> 00:30:39.099
a person whose family had agreed that it could be
509
00:30:39.140 --> 00:30:45.160
shown this way. So we're just slowly pulling out one
510
00:30:45.180 --> 00:30:45.880
of the vessels.
511
00:30:47.940 --> 00:30:48.460
Oh, wow.
512
00:30:49.500 --> 00:30:49.740
Is it?
513
00:30:50.579 --> 00:30:50.910
This is it.
514
00:30:50.920 --> 00:30:52.119
Isn't it beautiful?
515
00:30:53.220 --> 00:30:55.460
It is amazing. How about the smell?
516
00:30:58.170 --> 00:31:00.380
Like the forest after a rain. And it's like this
517
00:31:00.460 --> 00:31:05.339
very beautiful, like sort of auburn color, almost. Like a
518
00:31:05.420 --> 00:31:09.000
really rich brown with, you know, sort of flecks of
519
00:31:09.039 --> 00:31:11.640
different colors in it. Like sort of darker chips and
520
00:31:11.680 --> 00:31:12.339
lighter chips.
521
00:31:13.000 --> 00:31:13.920
Yeah, I mean, it looks really.
522
00:31:13.940 --> 00:31:16.650
I keep thinking of the word healthy, which feels really weird.
523
00:31:17.170 --> 00:31:21.230
Because we're sort of speaking of somebody who's past, but.
524
00:31:21.730 --> 00:31:22.990
Can I touch it?
525
00:31:22.990 --> 00:31:24.809
Look at your face.
526
00:31:24.829 --> 00:31:28.910
Okay, so I'm touching it now. Wow, it's just... It's
527
00:31:28.950 --> 00:31:33.769
like nothing I've ever felt before. I'm a little overwhelmed.
528
00:31:33.789 --> 00:31:37.720
I just can't believe it that this was a human
529
00:31:37.740 --> 00:31:40.980
a month ago. It's just incredible. You can't stop running
530
00:31:41.000 --> 00:31:41.859
your fingers through it.
531
00:31:42.079 --> 00:31:46.059
I can't stop running my fingers through it. I know,
532
00:31:46.099 --> 00:31:47.700
I just want to keep putting my hands in it.
533
00:31:47.700 --> 00:31:56.069
So we felt this weird awe as we were putting
534
00:31:56.130 --> 00:32:00.250
our hands in this human compost. But this was just
535
00:32:00.289 --> 00:32:04.799
a stranger to us. And we wondered, how would you
536
00:32:04.859 --> 00:32:07.619
feel if it was your loved one and you were
537
00:32:07.980 --> 00:32:12.339
putting your hands through them? So Blythe and I asked
538
00:32:12.380 --> 00:32:12.990
Brie about it.
539
00:32:13.000 --> 00:32:17.640
I guess I just, I have a really distinct memory.
540
00:32:17.660 --> 00:32:21.720
Brie told us about this woman who knew she was
541
00:32:21.779 --> 00:32:25.799
dying from cancer and wanted to be composted. After the
542
00:32:25.900 --> 00:32:29.269
process was all done... there were these big burlap bags
543
00:32:29.329 --> 00:32:33.009
of soil. And the woman's parents came to pick them up.
544
00:32:34.549 --> 00:32:37.630
And while the woman who died had wanted this for herself,
545
00:32:37.990 --> 00:32:40.650
her parents were clearly struggling with this whole idea.
546
00:32:41.509 --> 00:32:44.369
And when they came in, I could see the discomfort.
547
00:32:44.549 --> 00:32:47.910
I could really see the hesitation and the discomfort. Because
548
00:32:47.950 --> 00:32:50.059
when I saw that family come in and they saw
549
00:32:50.099 --> 00:32:50.849
these big.
550
00:32:50.730 --> 00:32:53.700
Bags of compost, you know, I saw.
551
00:32:54.339 --> 00:32:56.599
their wheels turning and them not being able to kind
552
00:32:56.619 --> 00:32:59.789
of take it in that moment, I decided to open
553
00:32:59.829 --> 00:33:02.190
a bag. I was like, I just think that this
554
00:33:02.250 --> 00:33:03.650
is going to be the way that we get through
555
00:33:03.670 --> 00:33:06.309
to them. And then the mother didn't even speak a
556
00:33:06.349 --> 00:33:08.609
word of English and walked over and just dug her
557
00:33:08.650 --> 00:33:13.190
hands in. And I saw the hesitation and the discomfort
558
00:33:13.269 --> 00:33:17.150
turn to her being comfortable and her really accepting it
559
00:33:17.230 --> 00:33:20.900
and And them hugging and her hugging me. And it
560
00:33:20.940 --> 00:33:24.619
was just the swing of emotions was extraordinary.
561
00:33:34.000 --> 00:33:37.400
Micah Truman, who owns this place, has been really surprised
562
00:33:37.480 --> 00:33:40.990
about how people are reacting to it. He told us
563
00:33:41.130 --> 00:33:44.789
stories of someone who poured Baileys inside the vessel before
564
00:33:44.849 --> 00:33:49.759
it closed. It was their person's favorite alcohol. People put
565
00:33:49.880 --> 00:33:53.900
photographs over the composting vessel and many just wanted to
566
00:33:54.019 --> 00:33:58.160
sit beside their person as they were composting. Sometimes they'd
567
00:33:58.180 --> 00:34:00.880
bring a cup of coffee for them and just put
568
00:34:00.920 --> 00:34:01.799
it on top of the vessel.
569
00:34:01.819 --> 00:34:06.789
Holy cow, I wasn't ready for that. I saw one
570
00:34:06.849 --> 00:34:09.849
guy take his mother's soil and I saw him, he
571
00:34:09.869 --> 00:34:11.269
took the bag and he put it in the front
572
00:34:11.289 --> 00:34:13.469
seat and then I saw him put the seatbelt on it.
573
00:34:14.599 --> 00:34:17.280
And when you do this with all the wood chips
574
00:34:17.360 --> 00:34:21.000
and straw and alfalfa, you end up driving home with
575
00:34:21.380 --> 00:34:25.940
quite a lot of compost. Micah says it's about 250
576
00:34:25.940 --> 00:34:32.510
pounds or a dozen big burlap bags. As Blythe and
577
00:34:32.530 --> 00:34:35.570
I were winding up our trip, our last stop was
578
00:34:35.610 --> 00:34:40.510
to see how some people were using their compost. We
579
00:34:40.530 --> 00:34:43.489
drove up to visit some land that Micah's company had bought.
580
00:34:44.179 --> 00:34:47.500
To help restore. It was out on a country road.
581
00:34:48.179 --> 00:34:50.139
Felt like it was kind of in the middle of nowhere.
582
00:34:50.159 --> 00:34:53.219
Hey, this is nice. It's like up on a hill.
583
00:34:55.789 --> 00:34:56.530
In the wilderness.
584
00:34:57.090 --> 00:35:01.550
At the entrance was this big moss-covered tree. Ooh, slug.
585
00:35:02.090 --> 00:35:03.530
A dead slug there, Anne.
586
00:35:03.789 --> 00:35:04.190
I don't know.
587
00:35:04.489 --> 00:35:05.170
Slug's on the move.
588
00:35:05.530 --> 00:35:07.389
Slowly.
589
00:35:09.030 --> 00:35:12.329
Life was all around this area. It was just really green,
590
00:35:12.469 --> 00:35:16.880
tons of trees. But then there was this clearing where
591
00:35:16.900 --> 00:35:19.360
there were no plants. It was kind of like a
592
00:35:19.719 --> 00:35:25.860
gravel driveway. And then over to one side, we saw
593
00:35:26.079 --> 00:35:31.260
where someone had carefully placed some compost. What we're seeing
594
00:35:31.320 --> 00:35:33.869
is just sort of this very thin layer of compost
595
00:35:33.929 --> 00:35:37.989
and then little shoots, plants, lots of different kinds popping up.
596
00:35:38.429 --> 00:35:41.250
You know, I'm like imagining sort of all the little
597
00:35:41.269 --> 00:35:44.349
microbes working their way through the soil and making it healthier.
598
00:35:45.409 --> 00:35:47.829
Like your little microbes are set free to sort of
599
00:35:47.889 --> 00:35:51.679
live on and like do good work and do their
600
00:35:51.699 --> 00:35:53.599
little microbe thing and like make the earth better. I
601
00:35:54.280 --> 00:35:55.239
think that seems very lovely.
602
00:35:55.260 --> 00:36:00.050
I mean, this is beautiful to think that your remains
603
00:36:00.119 --> 00:36:06.760
could create a beautiful little garden. That is lovely. Put
604
00:36:06.800 --> 00:36:08.139
me under some gum tree.
605
00:36:08.159 --> 00:36:11.619
Some kangaroos, I assume, digging around the base of the tree.
606
00:36:11.639 --> 00:36:15.210
Exactly, crapping on my composted remains.
607
00:36:15.230 --> 00:36:18.030
It's just really such a beautiful image you've painted.
608
00:36:33.420 --> 00:36:34.239
That's Science Versus.
609
00:36:37.260 --> 00:36:37.719
Hello.
610
00:36:38.199 --> 00:36:38.980
Hello.
611
00:36:39.000 --> 00:36:39.980
Wendy, is that you?
612
00:36:40.000 --> 00:36:40.579
Can you hear me?
613
00:36:41.460 --> 00:36:44.309
Barely. Where are you? Are you getting composted right now?
614
00:36:44.329 --> 00:36:44.400
Oh.
615
00:36:45.809 --> 00:36:50.630
Wait. Hello, Wendy?
616
00:36:50.829 --> 00:36:52.769
Hello. Hello, Blythe, Terrell.
617
00:36:53.070 --> 00:36:58.750
Wendy Zuckerman? Oh my God, it's you?
618
00:36:59.190 --> 00:37:02.840
Blythe, how many citations are in this week's episode?
619
00:37:03.300 --> 00:37:05.179
We have... More than.
620
00:37:05.039 --> 00:37:08.960
60 citations in this week's episode. More than 60. And
621
00:37:09.019 --> 00:37:11.360
if people want to see these citations, where should they go?
622
00:37:11.719 --> 00:37:13.909
They should go to our show notes and click on
623
00:37:13.949 --> 00:37:16.289
our transcripts. And they'll be laid out in front of
624
00:37:16.349 --> 00:37:18.730
them in all of their science-y glory.
625
00:37:18.909 --> 00:37:21.429
Almost as if I was going to make like a
626
00:37:21.510 --> 00:37:24.260
laid out to rest. Nah, don't worry about it.
627
00:37:24.380 --> 00:37:24.960
Bye.
628
00:37:25.340 --> 00:37:26.159
Bye.
629
00:37:26.179 --> 00:37:27.039
Thanks, bye.
630
00:37:27.079 --> 00:37:28.780
Bye. Thanks, Wendy. Bye.
631
00:37:35.190 --> 00:37:38.480
This episode was produced by Blythe Terrell and me, Wendy Zuckerman,
632
00:37:39.019 --> 00:37:41.860
with help from Meryl Horne, Michelle Dang, Rose Rimler, Courtney
633
00:37:41.880 --> 00:37:45.329
Gilbert and Disha Bhagat. We're edited by Blythe Terrell and
634
00:37:45.349 --> 00:37:49.139
Caitlin Kenney. Checking by Eva Dasher. Mix and sound design
635
00:37:49.199 --> 00:37:52.679
by Sam Baer. Music written by Bumi Hidaka, Emma Munger,
636
00:37:52.840 --> 00:37:56.099
Bobby Lord, So Wiley and Peter Leonard. Thanks to all
637
00:37:56.159 --> 00:37:57.860
of the researchers that we got in touch with for
638
00:37:57.889 --> 00:38:04.230
this episode, including Dr. Lynn Carpenter-Boggs, Dr. Muriel Lepester, Jean F. Bonotel, Dr.
639
00:38:04.289 --> 00:38:08.309
Mark Paulett, Professor Kombla Che, Dr. Ruth McManus and Dr.
640
00:38:08.329 --> 00:38:12.110
Julie Rugg. A special thanks to Jimmy Olsen, Jonathan Goldstein,
641
00:38:12.389 --> 00:38:17.139
Julia Martin, the Zuckerman family and Joseph Lavelle-Wilson. I'm Wendy Zuckerman.
642
00:38:17.639 --> 00:38:28.070
Back to you next time. Okay, hello, hello, hello. All right,
643
00:38:28.090 --> 00:38:30.650
we're just having a quick break, a quick banana. But
644
00:38:30.690 --> 00:38:32.769
I realized I didn't wash my hands.
645
00:38:33.869 --> 00:38:36.210
After you ran your hands through the compost, you didn't
646
00:38:36.230 --> 00:38:40.130
wash them yet? No, did you? I snuck some sanitizer,
647
00:38:40.150 --> 00:38:41.210
but I can still see some flecks.
648
00:38:42.670 --> 00:38:43.989
Yeah, I still have flecks too.
649
00:38:45.050 --> 00:38:46.300
Do you want to go back inside and wash your hands?
1
00:00:03.850 --> 00:00:06.290
Hi, I'm Wendy Zuckerman, and you're listening to Science Versus
2
00:00:06.320 --> 00:00:11.119
from Gimlet. All right. So we're going to find the bodies,
3
00:00:11.320 --> 00:00:11.919
is that right?
4
00:00:12.759 --> 00:00:13.039
Yes.
5
00:00:14.300 --> 00:00:17.359
I'm driving through the outer suburbs of Seattle with my editor,
6
00:00:17.600 --> 00:00:18.239
Blythe Terrell.
7
00:00:18.480 --> 00:00:19.960
Do-do-do-do-do.
8
00:00:20.940 --> 00:00:23.339
Blythe's been working on Science Versus for about five years,
9
00:00:24.539 --> 00:00:27.769
and yet still can't quite remember the theme song.
10
00:00:28.210 --> 00:00:30.949
Do-do-do-do-do. Do-do-do-do-do-do.
11
00:00:34.390 --> 00:00:37.990
Where we're driving, there's boarded up houses and wire fences.
12
00:00:39.000 --> 00:00:42.500
I guess it's like one degree off a spooky suburb,
13
00:00:42.640 --> 00:00:46.380
I think. If just one ghost walked past, I'd be like,
14
00:00:46.820 --> 00:00:47.460
this is scary.
15
00:00:48.140 --> 00:00:49.479
Yeah, I think that checks out.
16
00:00:50.009 --> 00:00:54.289
And this suburb, with its almost haunted houses, gave way
17
00:00:54.350 --> 00:00:57.210
to an industrial park, which is where we're headed, to
18
00:00:58.109 --> 00:01:00.670
look for one very specific warehouse.
19
00:01:01.840 --> 00:01:02.179
Where is it?
20
00:01:02.810 --> 00:01:04.290
Then the destination is on your right.
21
00:01:06.310 --> 00:01:06.930
On our right.
22
00:01:08.150 --> 00:01:10.709
And then we see it. Okay, here it is. This
23
00:01:10.810 --> 00:01:16.099
nondescript grey building. And inside it, people are doing something
24
00:01:16.120 --> 00:01:23.810
that some find very controversial. And maybe even a little creepy.
25
00:01:23.829 --> 00:01:24.849
Hello, Luke.
26
00:01:25.790 --> 00:01:29.849
We're welcomed by a very friendly fellow with wire-rimmed glasses,
27
00:01:29.930 --> 00:01:33.019
an office shirt and a flannel vest that feels like
28
00:01:33.060 --> 00:01:36.579
he's ready for a tech conference. His name is Micah
29
00:01:36.620 --> 00:01:41.079
Truman and he shows us around. It's this huge, echoey,
30
00:01:41.219 --> 00:01:42.540
industrial-looking space.
31
00:01:43.299 --> 00:01:44.959
Yeah, we're not playing wind in your wings here.
32
00:01:45.319 --> 00:01:48.879
There's large machines whirring in the background and all this
33
00:01:49.019 --> 00:01:53.760
farm stuff, like piles of straw and alfalfa. And they
34
00:01:53.799 --> 00:01:56.540
are going to go inside these containers that we see,
35
00:01:57.219 --> 00:01:59.519
which are about the size of a big fridge lying
36
00:01:59.560 --> 00:02:00.140
on its side.
37
00:02:00.159 --> 00:02:02.030
Yeah, the vessels are here.
38
00:02:02.049 --> 00:02:03.900
So what is it made of?
39
00:02:04.310 --> 00:02:05.430
It's made of a polycarbonate.
40
00:02:05.829 --> 00:02:11.270
It's a polycarbonate that is both incredibly insulating and incredibly strong.
41
00:02:11.289 --> 00:02:15.849
There's a rack of these vessels behind us, stacked three
42
00:02:15.909 --> 00:02:19.919
high and about a dozen across. So picture a warehouse
43
00:02:20.039 --> 00:02:24.460
just full of these vessels. Oh, wow. And what's inside
44
00:02:24.500 --> 00:02:28.979
these vessels isn't just stuff like straw and alfalfa. For
45
00:02:29.020 --> 00:02:32.139
what's happening here to work, we're going to need one
46
00:02:32.379 --> 00:02:33.939
very key ingredient.
47
00:02:34.699 --> 00:02:36.439
Your body would rest up to about here.
48
00:02:36.460 --> 00:02:44.169
Oh, that's right. Your body. Well, we're going to need
49
00:02:44.289 --> 00:02:49.229
a dead human body. Because inside these big vessels... There
50
00:02:49.250 --> 00:02:59.050
are people in them. What's happening here? They're composting human bodies.
51
00:03:00.030 --> 00:03:02.569
You know, like that thing that people do with leftover
52
00:03:02.629 --> 00:03:06.400
scraps at dinner? But this time, they're doing it with us.
53
00:03:07.300 --> 00:03:11.479
Turning bodies into soil. And this whole process, it takes
54
00:03:11.620 --> 00:03:14.439
only a couple of months to get a full human
55
00:03:14.500 --> 00:03:20.830
body into tiny flecks of dirt. At this human composting facility,
56
00:03:20.969 --> 00:03:24.840
all of this was super intriguing. Like Micah showed me
57
00:03:24.939 --> 00:03:27.719
this spot on a composting vessel. It was a vent
58
00:03:27.860 --> 00:03:29.810
on the top of the box about the size of
59
00:03:29.870 --> 00:03:32.969
my fist. And he gave me a simple suggestion.
60
00:03:35.150 --> 00:03:35.710
Put your hand here.
61
00:03:37.889 --> 00:03:38.430
Oh, it's hot.
62
00:03:39.150 --> 00:03:42.009
This is the body transforming into soil.
63
00:03:42.590 --> 00:03:44.310
And it's magic.
64
00:03:46.750 --> 00:03:48.289
It's an absolute miracle.
65
00:03:49.189 --> 00:03:53.150
It's crazy. When you feel that heat, what are you
66
00:03:53.270 --> 00:03:54.250
thinking about?
67
00:03:55.129 --> 00:03:57.409
Oh my gosh, safe journey to you.
68
00:03:57.509 --> 00:04:01.479
I think of it like you're.
69
00:04:01.340 --> 00:04:05.939
Transforming into a new thing, almost butterfly-esque. I'm like, go, go, go.
70
00:04:06.979 --> 00:04:09.259
Go make your transformation.
71
00:04:09.280 --> 00:04:15.080
So this is what we're digging into today. Human composting.
72
00:04:16.500 --> 00:04:19.899
Why are we doing this? What exactly is going on
73
00:04:20.019 --> 00:04:24.430
in that hot vessel? And what happens when cold, hard
74
00:04:24.490 --> 00:04:29.050
science collides with our very complex feelings around death?
75
00:04:30.129 --> 00:04:33.529
When they walk out with the compost, what is it?
76
00:04:33.579 --> 00:04:37.319
Is it still, to you, a human remains?
77
00:04:37.339 --> 00:04:41.379
Completely different. It's not a person. It's not at all.
78
00:04:42.620 --> 00:05:00.379
Composting Humans is coming up just after the break. Welcome back. Today,
79
00:05:00.500 --> 00:05:04.379
we're sticking our science versus shovels into this wild idea,
80
00:05:05.339 --> 00:05:10.579
human composting. And the reason that this is kicking off
81
00:05:10.639 --> 00:05:13.500
now is because it's part of this big push for
82
00:05:13.560 --> 00:05:16.079
us to deal with our dead in ways that are
83
00:05:16.100 --> 00:05:18.639
better for the environment and better for all of us.
84
00:05:19.490 --> 00:05:22.829
It's sometimes called the Green Death Movement. And we got
85
00:05:22.850 --> 00:05:26.029
to talking about all this with Brie Smith. Hello, hello, hello.
86
00:05:26.170 --> 00:05:26.910
How loud do you talk?
87
00:05:27.930 --> 00:05:28.790
I talk this loud.
88
00:05:29.089 --> 00:05:29.750
Talk, talk, talk, talk.
89
00:05:29.870 --> 00:05:32.449
who' s worked in the funeral industry for more than a decade.
90
00:05:32.470 --> 00:05:34.129
I do feel like you're quite measured.
91
00:05:34.149 --> 00:05:37.870
I think that's a trick of the trade, is to
92
00:05:37.910 --> 00:05:38.689
be even-keeled.
93
00:05:38.709 --> 00:05:41.970
But Bree has been around dead bodies her whole life.
94
00:05:43.430 --> 00:05:46.220
Her mum was a make-up artist who was sometimes called
95
00:05:46.240 --> 00:05:49.079
to do prep for funerals. So she'd go down to
96
00:05:49.100 --> 00:05:52.439
the local morgue and put make-up on the dead. And
97
00:05:52.480 --> 00:05:55.699
little Bree would tag along, see what mum was up to.
98
00:05:56.670 --> 00:05:59.449
And I remember her curling old lady hair. I just
99
00:05:59.490 --> 00:06:02.170
like have distinct memories of her with like little tiny
100
00:06:02.230 --> 00:06:06.110
curling irons and I just saw her take them from
101
00:06:06.329 --> 00:06:08.930
looking dead to looking a lot less dead and it
102
00:06:08.970 --> 00:06:09.829
was so beautiful.
103
00:06:10.790 --> 00:06:13.470
Brie grew up to be a funeral director which meant
104
00:06:13.790 --> 00:06:16.569
she was now dealing with dead bodies all day every
105
00:06:16.610 --> 00:06:19.730
day at work. And she told us that there are
106
00:06:19.769 --> 00:06:24.189
some definite downsides to how we typically handle them. Like
107
00:06:24.589 --> 00:06:28.310
Take cremation, which is super common in the US. Blythe
108
00:06:28.629 --> 00:06:29.230
asked her about it.
109
00:06:30.350 --> 00:06:32.009
How many people do you think you've cremated?
110
00:06:32.949 --> 00:06:33.930
Thousands, probably.
111
00:06:33.970 --> 00:06:36.910
I mean, at least over a thousand, yeah. I really
112
00:06:36.990 --> 00:06:39.410
don't like cremation. I would do anything to any of
113
00:06:39.490 --> 00:06:40.790
my loved ones besides that.
114
00:06:43.850 --> 00:06:45.529
One of the reasons that Brie doesn't like it is
115
00:06:46.189 --> 00:06:51.040
because cremation isn't good for the planet. When we burn bodies,
116
00:06:51.379 --> 00:06:54.759
the carbon inside us goes up into the air. It's
117
00:06:54.819 --> 00:06:58.300
estimated that in the U.S., cremation emits about a billion
118
00:06:58.379 --> 00:07:02.860
pounds of CO2 each year. Metals in our body, like
119
00:07:02.980 --> 00:07:06.319
mercury tooth fillings, they also go up in smoke.
120
00:07:07.620 --> 00:07:10.610
Sometimes I would be cremating and black smoke would start
121
00:07:10.750 --> 00:07:14.410
coming out of the fluke. So I felt very uncomfortable.
122
00:07:19.689 --> 00:07:23.310
And then there's embalming, which Americans often do to bodies
123
00:07:23.370 --> 00:07:28.350
before burying them. Embalming involves injecting formaldehyde into a corpse
124
00:07:28.430 --> 00:07:32.920
to preserve it. But formaldehyde can be dangerous. It's classified
125
00:07:32.959 --> 00:07:36.139
as a carcinogen. And embalmers are at a higher risk
126
00:07:36.240 --> 00:07:40.379
of some cancers, like leukemia and pancreatic cancer, compared to
127
00:07:40.399 --> 00:07:44.920
the rest of the population. And Brie, she inhaled this
128
00:07:44.939 --> 00:07:45.839
stuff for years.
129
00:07:47.019 --> 00:07:51.290
When you embalm formaldehyde, vapors will come up and.
130
00:07:53.920 --> 00:07:55.899
I would walk out of the prep room and my
131
00:07:55.959 --> 00:07:58.899
nose hairs would be stiff from like.
132
00:07:59.540 --> 00:08:00.939
Oh my God. Yeah.
133
00:08:01.310 --> 00:08:03.170
I mean, and that is actually.
134
00:08:03.209 --> 00:08:04.310
The embalming fluid.
135
00:08:04.089 --> 00:08:04.949
Went up into your nose.
136
00:08:05.870 --> 00:08:07.930
It was like in your nose and you would go
137
00:08:07.990 --> 00:08:10.170
home and you'd be like, it'd be dinner time and
138
00:08:10.189 --> 00:08:13.569
you could still kind of smell the embalming fluid.
139
00:08:14.629 --> 00:08:16.610
So a lot of what we're doing now to our
140
00:08:16.649 --> 00:08:26.040
dead bodies, it isn't great. Enter greener, and less chemical-y options.
141
00:08:27.399 --> 00:08:29.899
Because you see, more and more people are wanting things
142
00:08:30.199 --> 00:08:33.179
like a natural burial, which is where you get buried
143
00:08:33.379 --> 00:08:37.259
often in a graveyard, but without chemicals, which is something
144
00:08:37.360 --> 00:08:40.419
that's always been common in some cultures. And it is
145
00:08:40.440 --> 00:08:43.259
a good idea, particularly if you're worried about the environment.
146
00:08:44.720 --> 00:08:48.500
But what makes people excited about human composting is that
147
00:08:49.039 --> 00:08:52.809
instead of taking perhaps years for a body to decompose,
148
00:08:53.710 --> 00:08:56.149
This could be done in just a few months. And
149
00:08:56.169 --> 00:08:58.330
then you could take that soil, which is full of
150
00:08:58.429 --> 00:09:01.629
nutrients from our body, and use it wherever you like,
151
00:09:02.230 --> 00:09:06.840
to grow a garden or restore degraded land. When Bree
152
00:09:06.879 --> 00:09:11.440
started really thinking about human composting, she was excited. And
153
00:09:11.480 --> 00:09:14.059
she ended up joining Micah's team, who we met at
154
00:09:14.100 --> 00:09:14.879
the start of the show.
155
00:09:15.460 --> 00:09:18.659
Every little bit of scientist inside of me was enthralled
156
00:09:18.700 --> 00:09:21.500
with that entire process. You know, trying to figure out
157
00:09:21.820 --> 00:09:22.139
how to.
158
00:09:23.399 --> 00:09:27.129
This takes us to our next question. How does it happen?
159
00:09:28.370 --> 00:09:31.610
How do you turn a stiff into soil in just
160
00:09:31.629 --> 00:09:38.679
a couple of months? Well, the brains behind this whole
161
00:09:38.779 --> 00:09:43.759
human composting push is Katrina Spade. So Blythe and I
162
00:09:43.799 --> 00:09:45.519
met Katrina at a park in Seattle.
163
00:09:45.779 --> 00:09:46.220
Hello, Ducky.
164
00:09:46.720 --> 00:09:49.200
Where we found out the details of how we are
165
00:09:49.279 --> 00:09:50.450
composting humans.
166
00:09:50.970 --> 00:09:51.470
Hello. Hello.
167
00:09:51.490 --> 00:09:51.950
Thank you.
168
00:09:53.679 --> 00:09:55.610
We found a cozy little spot to sit in.
169
00:09:55.750 --> 00:09:57.990
Is that a dead rat?
170
00:09:58.009 --> 00:10:02.480
Got to chatting. So about a decade ago, Katrina, who's
171
00:10:02.580 --> 00:10:06.120
trained as an architect, started thinking about what she's going
172
00:10:06.139 --> 00:10:09.679
to do with her body when she eventually dies. And
173
00:10:09.700 --> 00:10:12.879
she started looking into those options of burial and cremation
174
00:10:12.899 --> 00:10:14.460
and was like.
175
00:10:14.799 --> 00:10:16.539
This stuff hasn't changed in, like, 100 years. Why?
176
00:10:16.559 --> 00:10:16.629
Why?
177
00:10:18.769 --> 00:10:19.870
Is this the best we can do?
178
00:10:19.889 --> 00:10:23.009
And she keeps thinking about it, talking to her friends
179
00:10:23.080 --> 00:10:26.529
about it, including one mate who was into composting.
180
00:10:27.080 --> 00:10:28.980
And she asked me if I'd heard of the fact
181
00:10:29.000 --> 00:10:32.639
that farmers compost whole cows. And I will say that
182
00:10:32.659 --> 00:10:34.600
it was kind of like a light bulb, because if
183
00:10:34.620 --> 00:10:36.700
you can compost a cow, you can probably compost a
184
00:10:36.740 --> 00:10:37.159
human being.
185
00:10:37.799 --> 00:10:41.740
Yeah, some farmers compost animals like pigs, cows and chickens.
186
00:10:42.460 --> 00:10:45.720
This happens for a few reasons, like sometimes if the
187
00:10:45.779 --> 00:10:49.129
animal is sick and can't be eaten. And this was
188
00:10:49.169 --> 00:10:52.730
Katrina's jumping off point. She was like, if we know
189
00:10:52.769 --> 00:10:55.929
that we can do this for farm animals, how do
190
00:10:55.970 --> 00:11:01.570
we do it for human animals? Katrina starts reading into
191
00:11:01.629 --> 00:11:04.179
it and she finds out that the science of all
192
00:11:04.220 --> 00:11:08.480
this is actually pretty fun. So to start with, the
193
00:11:08.580 --> 00:11:11.580
real heroes of composting are microbes.
194
00:11:12.580 --> 00:11:16.360
The microbes come from the air and they're on us
195
00:11:16.399 --> 00:11:19.120
right now as we speak and they're on the dead people.
196
00:11:19.940 --> 00:11:21.850
I talked to Micah Truman about this too.
197
00:11:22.519 --> 00:11:23.629
It's gorgeous, right?
198
00:11:23.889 --> 00:11:26.350
And so these microbes kick in and they begin the
199
00:11:26.389 --> 00:11:30.169
transformation process. They love heat and moisture and oxygen.
200
00:11:32.840 --> 00:11:37.399
These teeny tiny microbes, mostly bacteria, but also other stuff
201
00:11:37.580 --> 00:11:42.879
like fungi, basically get unleashed after we die, oozing out
202
00:11:42.960 --> 00:11:46.879
chemicals that break down organic stuff, like a dead cow
203
00:11:47.179 --> 00:11:50.259
or a corpse. Then what comes out the other side
204
00:11:50.279 --> 00:11:55.539
is soil. But to do their jobs, microbes need just
205
00:11:55.700 --> 00:11:59.250
the right environment. Like what Micah said, they love heat,
206
00:11:59.570 --> 00:12:05.450
moisture and oxygen. That oxygen encourages the right kind of
207
00:12:05.529 --> 00:12:08.590
microbes to thrive so that you really get the compost
208
00:12:08.649 --> 00:12:12.379
going What we also are going to need here is
209
00:12:12.399 --> 00:12:17.730
the right balance of carbon and nitrogen. Humans, horses and pigs, well,
210
00:12:17.970 --> 00:12:21.470
we're all nitrogen rich. So to get a good compost,
211
00:12:21.909 --> 00:12:24.049
you need to add stuff with a bunch of carbon
212
00:12:24.070 --> 00:12:29.070
in it. Think wood chips, alfalfa or straw. So Katrina's
213
00:12:29.129 --> 00:12:33.899
reading all this and she's like, huh, we could totally
214
00:12:33.960 --> 00:12:34.879
do this with people.
215
00:12:37.340 --> 00:12:40.120
There was no question if we could make a human
216
00:12:40.179 --> 00:12:44.980
body compost, right? There's no question. I'm not kidding when
217
00:12:45.019 --> 00:12:46.419
I say if you can compost a cow, you can
218
00:12:46.460 --> 00:12:47.100
compost a human.
219
00:12:47.879 --> 00:12:51.570
But now, Katrina had to figure out exactly how she
220
00:12:51.590 --> 00:12:55.169
was going to make this work in people. Because when
221
00:12:55.210 --> 00:12:58.750
farmers compost a bunch of, say, chickens, they can just
222
00:12:58.830 --> 00:13:01.049
pile them on top of each other with some wood
223
00:13:01.090 --> 00:13:05.340
chips or whatnot. And at first, Katrina was like, maybe
224
00:13:05.379 --> 00:13:06.519
we could do something like that.
225
00:13:07.809 --> 00:13:11.860
Well, early on, I had a vision in architecture school
226
00:13:12.080 --> 00:13:16.100
for a large collective core composter. It was a big
227
00:13:16.159 --> 00:13:18.059
building in which all the bodies would go together.
228
00:13:18.779 --> 00:13:22.600
But Katrina thought about it a touch more and was like, well,
229
00:13:22.919 --> 00:13:27.149
humans are sentimental creatures. We like to respect our dead.
230
00:13:27.889 --> 00:13:29.490
If you're saying, like, we're going to make a giant
231
00:13:29.529 --> 00:13:31.450
building where you put all the bodies together, it starts
232
00:13:31.470 --> 00:13:33.049
to sound kind of scary. That's gross.
233
00:13:33.250 --> 00:13:33.429
No.
234
00:13:35.190 --> 00:13:38.649
But if you're like, you, when you die, you will
235
00:13:38.690 --> 00:13:42.610
be laid to rest in this one vessel. Consider it
236
00:13:42.629 --> 00:13:45.409
a hotel for the dead. It's just for you. And
237
00:13:45.429 --> 00:13:47.490
your body will stay there for about 30 days with us.
238
00:13:48.070 --> 00:13:48.809
And then you'll be soil.
239
00:13:50.289 --> 00:13:54.600
That's a much better pitch. Katrina decided to try it out.
240
00:13:55.230 --> 00:13:57.990
She joined forces with a team of nerds at Washington
241
00:13:58.009 --> 00:14:01.840
State University to help her iron out the details. And together,
242
00:14:02.059 --> 00:14:05.080
they concocted a mix of alfalfa, straw and wood chips
243
00:14:05.559 --> 00:14:11.480
to tuck around people's bodies in individual vessels. And in 2018,
244
00:14:11.480 --> 00:14:14.470
they started a pilot study to test this all out
245
00:14:14.500 --> 00:14:19.690
in humans. So now they just needed some humans willing
246
00:14:19.769 --> 00:14:23.080
to be guinea pigs for all this. The first people
247
00:14:23.379 --> 00:14:25.990
to boldly go into their hotel for the dead and
248
00:14:26.029 --> 00:14:31.909
be composted. And it turned out, finding them wasn't too hard.
249
00:14:32.990 --> 00:14:33.649
Look at this lady.
250
00:14:34.210 --> 00:14:36.909
She was so great. Oh, can you describe what we're
251
00:14:36.929 --> 00:14:37.370
looking at?
252
00:14:37.750 --> 00:14:40.049
Yeah, this is a picture of Darby sitting in her
253
00:14:40.129 --> 00:14:43.419
living room in her wheelchair. On the side of the
254
00:14:43.440 --> 00:14:46.139
wheelchair is a bumper sticker that says, War is the
255
00:14:46.200 --> 00:14:50.139
real enemy. And she's smiling very broadly.
256
00:14:52.659 --> 00:14:55.639
Darby was 93 when she died. And towards the end
257
00:14:55.679 --> 00:14:58.059
of her life, she read about Katrina's work from an
258
00:14:58.159 --> 00:15:00.620
article in the paper. And she loved the idea.
259
00:15:00.639 --> 00:15:05.840
It was perfect for her to be one of the first. She,
260
00:15:05.879 --> 00:15:08.519
in fact, would call me on the phone and she'd
261
00:15:08.539 --> 00:15:10.240
be like, why is it taking you so long? This
262
00:15:10.279 --> 00:15:12.820
was obviously before she died. And at one point I
263
00:15:12.820 --> 00:15:15.000
was like, you know, Darby, I know that you mean well,
264
00:15:15.100 --> 00:15:18.320
but I'm working really hard. Like I'm doing my best here.
265
00:15:18.980 --> 00:15:20.659
So if you could just be a little gentler.
266
00:15:22.190 --> 00:15:26.129
Darby joined Katrina's pilot study. She became one of six
267
00:15:26.190 --> 00:15:29.649
people who donated their bodies for it. They were all
268
00:15:29.710 --> 00:15:33.070
placed in these big cylinders that were black and plastic.
269
00:15:34.009 --> 00:15:38.629
And to balance out Darby's nitrogen-rich body, they carefully added
270
00:15:38.700 --> 00:15:40.899
in that mix of carbony stuff.
271
00:15:44.000 --> 00:15:48.399
We had laid a bed of alfalfa, straw and wood
272
00:15:48.419 --> 00:15:53.860
chips into this vessel and then... placed her body onto
273
00:15:53.960 --> 00:15:56.299
it with some you know a couple of us adults
274
00:15:56.860 --> 00:16:00.759
because a body can be hard to maneuver and laid
275
00:16:00.799 --> 00:16:03.899
her on this bed and then then we covered her
276
00:16:03.960 --> 00:16:05.500
with more of the same i think at that point
277
00:16:05.519 --> 00:16:10.429
we were using pitchforks really farm-esque you know and so
278
00:16:10.490 --> 00:16:13.289
covered her with more and then finally covered her face
279
00:16:13.350 --> 00:16:16.070
and then and that was it and kind of um
280
00:16:16.210 --> 00:16:20.610
i know i did read a poem Life should not
281
00:16:20.639 --> 00:16:23.009
be a journey to the grave with the intention of
282
00:16:23.070 --> 00:16:27.350
arriving safely in a pretty and well-preserved body, but rather
283
00:16:27.409 --> 00:16:31.750
to skid in broadside in a cloud of smoke, thoroughly
284
00:16:31.870 --> 00:16:36.990
used up, totally worn out, and loudly proclaiming, wow, what
285
00:16:37.029 --> 00:16:42.480
a ride. On the day when we actually laid her
286
00:16:42.509 --> 00:16:45.659
body into a vessel, this is going to sound so cheesy,
287
00:16:45.740 --> 00:16:49.169
there was a double rainbow. I was like, of course, Darby,
288
00:16:49.450 --> 00:16:49.870
of course.
289
00:16:54.210 --> 00:16:57.100
Over the coming weeks, the researchers in the study carefully
290
00:16:57.169 --> 00:17:01.240
managed the compost vessels, adding air so it had enough oxygen,
291
00:17:01.759 --> 00:17:04.740
making sure the moisture levels and the temperature was just right,
292
00:17:05.359 --> 00:17:08.220
and then regularly rotating them to mix it all up.
293
00:17:09.279 --> 00:17:11.920
After over a month, Katrina came back to see Darby.
294
00:17:12.720 --> 00:17:14.799
And where there had been a body and a bunch
295
00:17:14.839 --> 00:17:19.839
of alfalfa straw and wood chips... Now there was mostly dirt.
296
00:17:20.859 --> 00:17:22.279
Katrina grabbed a handful.
297
00:17:22.299 --> 00:17:28.240
It just was a really nice way to complete her journey.
298
00:17:28.900 --> 00:17:31.220
But yeah, I mean, it was really powerful to see
299
00:17:31.240 --> 00:17:31.980
that it worked.
300
00:17:34.779 --> 00:17:38.440
It wasn't just soil in these bins. Even seven weeks
301
00:17:38.539 --> 00:17:42.700
into the process, there were some large bone fragments. Our
302
00:17:42.720 --> 00:17:46.559
bones are tougher for microbes to break down than our fleshier,
303
00:17:46.779 --> 00:17:51.490
gooier bits. Katrina decided that in the future, she could
304
00:17:51.529 --> 00:17:54.190
break the bones down using a similar machine to what
305
00:17:54.230 --> 00:17:57.910
crematories use and then return them to the vessel so
306
00:17:57.930 --> 00:18:02.559
that the microbes could have another go at them. Overall,
307
00:18:03.230 --> 00:18:05.700
Katrina was feeling pretty good about all this.
308
00:18:06.859 --> 00:18:10.799
Do you think that you were the first people to
309
00:18:10.839 --> 00:18:13.579
kind of intentionally compost a human body in this way?
310
00:18:14.779 --> 00:18:19.140
I think so. How does that feel? It's really, it's really,
311
00:18:20.279 --> 00:18:24.559
it's so satisfying. It feels amazing. Yeah, it's really kind
312
00:18:24.579 --> 00:18:25.640
of moving to me.
313
00:18:27.279 --> 00:18:32.109
So, everything seems to be going to plan. Except that
314
00:18:32.119 --> 00:18:35.990
somewhere in the midst of all this sciencing, Katrina ran
315
00:18:36.009 --> 00:18:38.809
into a bit of a snag. She got an email
316
00:18:38.849 --> 00:18:42.349
from a law professor telling her, I like what you're.
317
00:18:42.250 --> 00:18:43.990
Trying to do, but you should know it's totally illegal.
318
00:18:45.210 --> 00:18:45.589
Damn it.
319
00:18:46.700 --> 00:18:50.480
Unsurprisingly, states in the U.S. have very strict rules about
320
00:18:50.519 --> 00:18:53.200
the things you can and can't do with a dead body.
321
00:18:53.220 --> 00:18:58.720
And at the time, you couldn't compost one. So Katrina
322
00:18:58.759 --> 00:19:01.599
headed to the capital of Washington state to try to
323
00:19:01.660 --> 00:19:04.700
change that. And she brought along some props.
324
00:19:05.720 --> 00:19:07.500
A little baggie of cow compost.
325
00:19:07.799 --> 00:19:08.619
Like a party favor.
326
00:19:08.880 --> 00:19:11.079
Like a party favor. It was really cute. And then
327
00:19:11.099 --> 00:19:14.740
we would bring them to Olympia and then kind of
328
00:19:14.759 --> 00:19:18.799
walk the halls. And any legislator who wanted could have
329
00:19:19.000 --> 00:19:20.660
a little box of this stuff and take a look
330
00:19:20.700 --> 00:19:22.910
at it. And some would say like, thanks, but no thanks.
331
00:19:23.170 --> 00:19:24.920
And then some people would be like, can I smell it?
332
00:19:24.990 --> 00:19:26.349
And I'm like, of course you can smell it. It
333
00:19:26.410 --> 00:19:27.950
smells great. Like soil.
334
00:19:29.250 --> 00:19:32.529
As a side note, That earthy smell is called geosmin,
335
00:19:33.109 --> 00:19:36.579
and rather wonderfully, it's made by some happy microbes that
336
00:19:36.599 --> 00:19:40.500
are in the compost pile, releasing little baby spores into
337
00:19:40.519 --> 00:19:45.509
the soil. That's what makes soil smell so nice. And so,
338
00:19:45.869 --> 00:19:47.750
just a few years ago, in 2019, Katrina watched as.
339
00:19:50.180 --> 00:19:55.740
Her own little baby human composting became legal in Washington.
340
00:19:56.759 --> 00:19:59.660
The day that the governor signed the bill I had
341
00:19:59.680 --> 00:20:01.279
my kids in little suits I was in a suit
342
00:20:01.319 --> 00:20:03.829
my girlfriend was there with me And we're standing, like
343
00:20:03.869 --> 00:20:05.710
you get your official picture with the governor as he
344
00:20:05.779 --> 00:20:08.279
is signing the bill. And we're just like grinning. Like
345
00:20:08.319 --> 00:20:11.599
the picture is like, we're just, all of us are
346
00:20:11.619 --> 00:20:16.079
just like beaming. So that was, that was kind of
347
00:20:16.119 --> 00:20:17.089
like the pinnacle right there.
348
00:20:17.109 --> 00:20:23.089
And now when someone dies, they can be composted. And
349
00:20:23.130 --> 00:20:25.750
it's not just in Washington, but other states have started
350
00:20:25.789 --> 00:20:28.970
approving this too. It costs about as much or even
351
00:20:28.990 --> 00:20:32.990
less than getting cremated. You send your body in. They
352
00:20:33.130 --> 00:20:37.490
put you in a container, add things like alfalfa and straw,
353
00:20:37.519 --> 00:20:43.519
and away you go. And once it's done, your family
354
00:20:43.579 --> 00:20:48.920
will end up with all this soil. But as this
355
00:20:49.039 --> 00:20:52.299
has started to take off, a couple of concerns have
356
00:20:52.359 --> 00:20:55.720
come up. And a big one that scientists are pondering
357
00:20:56.599 --> 00:21:01.369
is whether this human compost is safe. Because a compost
358
00:21:01.410 --> 00:21:05.150
pile is full of bacteria, right? And if a person
359
00:21:05.190 --> 00:21:09.319
dies of some nasty disease, could that be in the compost?
360
00:21:11.140 --> 00:21:13.839
After the break, we follow the journey of more than
361
00:21:13.880 --> 00:21:26.569
a million composted chickens to find out. Hey, it's Wendy
362
00:21:26.690 --> 00:21:28.829
from Science Versus, and I want to tell you about
363
00:21:28.910 --> 00:21:32.230
a podcast that I love, Science Friday. They cover all
364
00:21:32.269 --> 00:21:35.210
sorts of amazing things in the weird and wonderful world
365
00:21:35.230 --> 00:21:39.009
of science, from how concussions affect our brain to the
366
00:21:39.130 --> 00:21:42.890
inner secrets of a snake with a spider on its tail.
367
00:21:42.990 --> 00:21:45.269
It's a lot of news that you can use and
368
00:21:45.309 --> 00:21:47.369
some that you can't, but you're going to love anyway.
369
00:21:47.589 --> 00:21:51.109
It's hosted by Ira Flato and Phyllis. Flora Lichtman, who
370
00:21:51.210 --> 00:21:53.750
is an old friend of the show and loves a
371
00:21:53.769 --> 00:21:56.480
pun as much as we do. Science Friday is on
372
00:21:56.680 --> 00:22:07.960
every day wherever you get your podcasts. Welcome back. So,
373
00:22:08.460 --> 00:22:10.640
we just found out how to compost a human. A
374
00:22:11.420 --> 00:22:15.690
bit of alfalfa, straw and wood chips. Bada bing, bada boom.
375
00:22:16.890 --> 00:22:21.519
But now we want to know... Is this bacteria-stuffed pile
376
00:22:21.559 --> 00:22:27.269
of dirt actually safe to take home? So to find out,
377
00:22:27.549 --> 00:22:30.829
we called up Thomas Bass at Montana State University.
378
00:22:31.430 --> 00:22:33.490
Casually go by Tommy, which is just fine here.
379
00:22:34.130 --> 00:22:37.829
Tommy knows a lot about what happens to nasty pathogens
380
00:22:37.970 --> 00:22:41.910
inside compost heaps because he works with farmers. And as
381
00:22:41.950 --> 00:22:44.759
part of his job, when farmers get an outbreak of
382
00:22:44.799 --> 00:22:47.980
some disease like bird flu... He's part of the team
383
00:22:48.009 --> 00:22:50.630
that works out, what are we going to do here?
384
00:22:50.650 --> 00:22:55.329
And kind of surprisingly, Tommy told us that a lot
385
00:22:55.349 --> 00:22:58.410
of the time these farms are turning to composting their
386
00:22:58.450 --> 00:23:02.009
infected animals to deal with the outbreak. And that's because
387
00:23:02.970 --> 00:23:09.369
composting can actually kill pathogens. Like, Tommy told us about
388
00:23:09.390 --> 00:23:12.910
this huge chicken farm with over a million chickens. Bird
389
00:23:12.950 --> 00:23:16.150
flu broke out and all the chickens were to be composted.
390
00:23:17.160 --> 00:23:19.890
And so how much compost would that make?
391
00:23:22.910 --> 00:23:28.670
A lot. We did wind rows, which are long compost
392
00:23:28.769 --> 00:23:32.049
piles that are maybe 10 to 12 feet wide, six
393
00:23:32.069 --> 00:23:35.109
feet high and hundreds of feet long.
394
00:23:36.109 --> 00:23:39.190
It was roughly the size of a football field. They
395
00:23:39.230 --> 00:23:42.980
laid the carbon rich materials down like wood chips. And
396
00:23:43.000 --> 00:23:46.279
then all those dead chickens went in the pile.
397
00:23:50.130 --> 00:23:52.420
Some of my colleagues call it a Twinkie or whatnot.
398
00:23:53.359 --> 00:23:58.420
You have then a mix of the potentially infected material.
399
00:23:58.640 --> 00:24:02.339
Oh, that's the cream? That's the cream of the Twinkie?
400
00:24:03.259 --> 00:24:04.619
The infected chicken?
401
00:24:04.859 --> 00:24:06.000
The filling, if you will.
402
00:24:07.140 --> 00:24:11.460
And what's pretty remarkable here is that this compost Twinkie
403
00:24:12.000 --> 00:24:16.069
is going to become a virus-killing machine. And here's a
404
00:24:16.109 --> 00:24:19.559
big reason why. When the microbes get to work, it
405
00:24:19.599 --> 00:24:21.559
can get hot in that compost pile.
406
00:24:22.180 --> 00:24:26.809
When those microorganisms start doing their work and metabolizing and
407
00:24:26.880 --> 00:24:28.869
ripping apart carbon bonds and whatnot.
408
00:24:29.049 --> 00:24:32.730
How hot does it get in a big carcass compost pile?
409
00:24:32.970 --> 00:24:35.589
Generally, within a couple of days, you'll see temperatures 130, 140,
410
00:24:35.569 --> 00:24:38.589
you know, 150 degrees Fahrenheit. Wow, that is cool that
411
00:24:38.650 --> 00:24:39.670
that is just the microbes.
412
00:24:39.390 --> 00:24:39.630
Hard at work.
413
00:24:39.650 --> 00:24:39.930
Yeah, yeah.
414
00:24:47.170 --> 00:24:49.410
One scientist told us that it got so hot in
415
00:24:49.430 --> 00:24:52.650
his compost pile that he actually cooked a roast dinner
416
00:24:52.710 --> 00:24:57.119
in there. Like, just for fun. He said it was delicious.
417
00:24:59.160 --> 00:25:01.960
But the point is that we have data that shows
418
00:25:02.039 --> 00:25:04.539
that when it gets hot enough over a certain period
419
00:25:04.559 --> 00:25:08.980
of time, lots of different dangerous pathogens struggle to survive.
420
00:25:09.910 --> 00:25:13.710
You know, it destroys such a wide range of pathogens,
421
00:25:13.809 --> 00:25:19.579
foot and mouth disease, avian influenza, plenty of bacteria, salmonella.
422
00:25:20.519 --> 00:25:23.740
According to the USDA, if your compost pile is around
423
00:25:23.740 --> 00:25:29.119
130 degrees Fahrenheit, which is roughly 55 Celsius, and it
424
00:25:29.180 --> 00:25:32.779
stays that way for at least three days, your avian
425
00:25:32.819 --> 00:25:37.829
flu should be a cock. And Katrina says that at
426
00:25:37.910 --> 00:25:41.829
her human composting facility, the vessels do get that hot.
427
00:25:42.730 --> 00:25:46.970
If you have that environment so tuned that the microbes
428
00:25:47.309 --> 00:25:50.809
are so happy that you're seeing temperatures, which is the
429
00:25:50.869 --> 00:25:54.819
indication of happiness for those microbes, we see the temperatures
430
00:25:55.019 --> 00:25:56.900
jump to 150 sometimes on day two.
431
00:25:58.220 --> 00:25:58.519
Wow.
432
00:25:58.539 --> 00:26:04.019
From cool. But although compost piles can kill a bunch
433
00:26:04.039 --> 00:26:08.089
of different pathogens … They're not John Wick. You can
434
00:26:08.130 --> 00:26:12.230
have some survivors. Because certain kinds of nasties, they can
435
00:26:12.289 --> 00:26:15.470
handle the heat of a compost pile. Like researchers have
436
00:26:15.509 --> 00:26:20.160
found that the bacteria that causes tuberculosis, that can survive.
437
00:26:21.019 --> 00:26:25.000
So can prions, those sturdy bastards that cause mad cow disease.
438
00:26:25.980 --> 00:26:29.180
And because of this, the law in Washington and other
439
00:26:29.200 --> 00:26:33.130
states says that at places like Katrina's They're not allowed
440
00:26:33.170 --> 00:26:37.220
to compost people who have died from particular diseases. They've
441
00:26:37.240 --> 00:26:44.279
also got to test the compost for certain bacteria. And
442
00:26:44.319 --> 00:26:48.299
big picture, Tommy says that even if human composting got
443
00:26:48.460 --> 00:26:52.140
really big, like thousands of people getting composted, tons of
444
00:26:52.180 --> 00:26:56.440
this stuff strewn across the landscape, as long as these
445
00:26:56.509 --> 00:26:59.950
companies are hitting those temperatures that we talked about and
446
00:27:00.150 --> 00:27:05.180
regularly testing their heap, for nasty bacteria, then he feels
447
00:27:05.200 --> 00:27:05.869
pretty good about it.
448
00:27:06.559 --> 00:27:09.319
So, you know, we're not seeing, you know, all the
449
00:27:10.319 --> 00:27:15.180
millions of tons of agricultural and food waste, including whole
450
00:27:15.309 --> 00:27:20.990
animals that has been composted, you know, forever. There's not
451
00:27:21.089 --> 00:27:26.109
evidence that it's posing a significant risk.
452
00:27:26.509 --> 00:27:26.789
Right.
453
00:27:26.829 --> 00:27:33.240
So in that, you know, football field... sized compost that
454
00:27:33.279 --> 00:27:37.700
you helped build for that huge chicken farm, all that
455
00:27:37.759 --> 00:27:40.759
compost then would have been used somewhere, right? And did
456
00:27:40.819 --> 00:27:44.599
that start an outbreak of avian flu?
457
00:27:45.079 --> 00:27:45.900
Right, it did not.
458
00:27:46.700 --> 00:27:49.700
And bottom line, Tommy told us that if he was
459
00:27:49.740 --> 00:27:54.650
given some burlap bags full of human compost, he'd gladly
460
00:27:54.710 --> 00:27:55.750
put them over his flowers.
461
00:27:58.849 --> 00:28:01.650
Yeah, we've got some Gerber daisies that come back, and
462
00:28:01.759 --> 00:28:05.039
we've got sunflowers we'll replant.
463
00:28:05.640 --> 00:28:06.740
So you'd put it on the daisies?
464
00:28:06.759 --> 00:28:09.119
Yeah, and that just seems nice, right? And I just
465
00:28:09.160 --> 00:28:11.619
don't know that I'd put it on the tomatoes. It's
466
00:28:11.740 --> 00:28:15.029
almost like a— it would be like communion, right? Like, all right,
467
00:28:15.049 --> 00:28:18.599
kids— Here's the tomatoes, and there's a little bit of
468
00:28:18.619 --> 00:28:19.440
grandpa in there.
469
00:28:24.099 --> 00:28:27.180
So tell me, so why wouldn't it go on the
470
00:28:27.200 --> 00:28:29.700
tomatoes other than the slight creep factor?
471
00:28:30.299 --> 00:28:31.289
That's the only reason.
472
00:28:31.720 --> 00:28:32.349
Oh, really?
473
00:28:32.549 --> 00:28:36.210
It's not because you're worried about pathogens, just the creep factor?
474
00:28:36.430 --> 00:28:37.289
No, no.
475
00:28:38.670 --> 00:28:41.210
It's safe, you know, but there's always, I feel like,
476
00:28:41.329 --> 00:28:43.529
a leap of faith in science. We look at the
477
00:28:43.569 --> 00:28:47.779
body of evidence— Nothing is ever certain in science. But,
478
00:28:47.799 --> 00:28:50.579
you know, I believe it to be very, very safe.
479
00:28:51.779 --> 00:28:54.069
Some other academics that we talked to about this were
480
00:28:54.119 --> 00:28:57.730
also pretty confident that it would be safe. But some
481
00:28:57.750 --> 00:29:01.750
were like, maybe don't put human compost on stuff that's
482
00:29:01.789 --> 00:29:04.329
going to go in your mouth. Would you do this
483
00:29:04.349 --> 00:29:06.880
for yourself? Would you get human composted?
484
00:29:07.119 --> 00:29:10.460
Yeah, I would. And I talked to my wife a
485
00:29:10.480 --> 00:29:14.460
little bit about it. All of our carbon... can be
486
00:29:14.500 --> 00:29:19.230
sequestered back into the earth and all of our proteins
487
00:29:19.289 --> 00:29:24.589
and nitrogen and nutrients, calcium and phosphorus are valuable to
488
00:29:24.789 --> 00:29:27.609
healthy soils. And to me, it's a nicer idea than
489
00:29:27.670 --> 00:29:34.039
a super expensive velvety coffin in a cemetery. One of
490
00:29:34.059 --> 00:29:37.180
the most expensive pieces of furniture anybody will ever buy
491
00:29:37.720 --> 00:29:39.640
to be put in a vault six feet under.
492
00:29:42.210 --> 00:29:46.039
We don't know if human composting is the most environmentally
493
00:29:46.119 --> 00:29:49.319
friendly way to deal with our dead. It's just so new.
494
00:29:50.519 --> 00:29:52.920
But we do know that by putting our carbon in
495
00:29:52.940 --> 00:29:56.180
the earth, we're not pumping it into the atmosphere like
496
00:29:56.220 --> 00:30:01.079
we do with cremation. After all of this, Blythe and
497
00:30:01.140 --> 00:30:04.720
I just really wanted to know what this compost looked like,
498
00:30:06.000 --> 00:30:11.380
smelled like. So while we were at the composting place
499
00:30:11.420 --> 00:30:14.450
that Micah runs, we asked if we could see it.
500
00:30:15.549 --> 00:30:16.130
And he said yes.
501
00:30:16.150 --> 00:30:18.930
Yeah, why don't we open it just so you can
502
00:30:18.970 --> 00:30:19.230
take a.
503
00:30:19.190 --> 00:30:21.049
Sniff of what we have. Okay.
504
00:30:22.250 --> 00:30:25.490
Micah and the team pulled out a blue container about
505
00:30:25.509 --> 00:30:29.690
the size of those big blue recycling bins. And inside
506
00:30:29.759 --> 00:30:33.319
it is a human. Well, it was a human just
507
00:30:33.359 --> 00:30:36.759
a few weeks ago. Now it's compost. It came from
508
00:30:36.799 --> 00:30:39.099
a person whose family had agreed that it could be
509
00:30:39.140 --> 00:30:45.160
shown this way. So we're just slowly pulling out one
510
00:30:45.180 --> 00:30:45.880
of the vessels.
511
00:30:47.940 --> 00:30:48.460
Oh, wow.
512
00:30:49.500 --> 00:30:49.740
Is it?
513
00:30:50.579 --> 00:30:50.910
This is it.
514
00:30:50.920 --> 00:30:52.119
Isn't it beautiful?
515
00:30:53.220 --> 00:30:55.460
It is amazing. How about the smell?
516
00:30:58.170 --> 00:31:00.380
Like the forest after a rain. And it's like this
517
00:31:00.460 --> 00:31:05.339
very beautiful, like sort of auburn color, almost. Like a
518
00:31:05.420 --> 00:31:09.000
really rich brown with, you know, sort of flecks of
519
00:31:09.039 --> 00:31:11.640
different colors in it. Like sort of darker chips and
520
00:31:11.680 --> 00:31:12.339
lighter chips.
521
00:31:13.000 --> 00:31:13.920
Yeah, I mean, it looks really.
522
00:31:13.940 --> 00:31:16.650
I keep thinking of the word healthy, which feels really weird.
523
00:31:17.170 --> 00:31:21.230
Because we're sort of speaking of somebody who's past, but.
524
00:31:21.730 --> 00:31:22.990
Can I touch it?
525
00:31:22.990 --> 00:31:24.809
Look at your face.
526
00:31:24.829 --> 00:31:28.910
Okay, so I'm touching it now. Wow, it's just... It's
527
00:31:28.950 --> 00:31:33.769
like nothing I've ever felt before. I'm a little overwhelmed.
528
00:31:33.789 --> 00:31:37.720
I just can't believe it that this was a human
529
00:31:37.740 --> 00:31:40.980
a month ago. It's just incredible. You can't stop running
530
00:31:41.000 --> 00:31:41.859
your fingers through it.
531
00:31:42.079 --> 00:31:46.059
I can't stop running my fingers through it. I know,
532
00:31:46.099 --> 00:31:47.700
I just want to keep putting my hands in it.
533
00:31:47.700 --> 00:31:56.069
So we felt this weird awe as we were putting
534
00:31:56.130 --> 00:32:00.250
our hands in this human compost. But this was just
535
00:32:00.289 --> 00:32:04.799
a stranger to us. And we wondered, how would you
536
00:32:04.859 --> 00:32:07.619
feel if it was your loved one and you were
537
00:32:07.980 --> 00:32:12.339
putting your hands through them? So Blythe and I asked
538
00:32:12.380 --> 00:32:12.990
Brie about it.
539
00:32:13.000 --> 00:32:17.640
I guess I just, I have a really distinct memory.
540
00:32:17.660 --> 00:32:21.720
Brie told us about this woman who knew she was
541
00:32:21.779 --> 00:32:25.799
dying from cancer and wanted to be composted. After the
542
00:32:25.900 --> 00:32:29.269
process was all done... there were these big burlap bags
543
00:32:29.329 --> 00:32:33.009
of soil. And the woman's parents came to pick them up.
544
00:32:34.549 --> 00:32:37.630
And while the woman who died had wanted this for herself,
545
00:32:37.990 --> 00:32:40.650
her parents were clearly struggling with this whole idea.
546
00:32:41.509 --> 00:32:44.369
And when they came in, I could see the discomfort.
547
00:32:44.549 --> 00:32:47.910
I could really see the hesitation and the discomfort. Because
548
00:32:47.950 --> 00:32:50.059
when I saw that family come in and they saw
549
00:32:50.099 --> 00:32:50.849
these big.
550
00:32:50.730 --> 00:32:53.700
Bags of compost, you know, I saw.
551
00:32:54.339 --> 00:32:56.599
their wheels turning and them not being able to kind
552
00:32:56.619 --> 00:32:59.789
of take it in that moment, I decided to open
553
00:32:59.829 --> 00:33:02.190
a bag. I was like, I just think that this
554
00:33:02.250 --> 00:33:03.650
is going to be the way that we get through
555
00:33:03.670 --> 00:33:06.309
to them. And then the mother didn't even speak a
556
00:33:06.349 --> 00:33:08.609
word of English and walked over and just dug her
557
00:33:08.650 --> 00:33:13.190
hands in. And I saw the hesitation and the discomfort
558
00:33:13.269 --> 00:33:17.150
turn to her being comfortable and her really accepting it
559
00:33:17.230 --> 00:33:20.900
and And them hugging and her hugging me. And it
560
00:33:20.940 --> 00:33:24.619
was just the swing of emotions was extraordinary.
561
00:33:34.000 --> 00:33:37.400
Micah Truman, who owns this place, has been really surprised
562
00:33:37.480 --> 00:33:40.990
about how people are reacting to it. He told us
563
00:33:41.130 --> 00:33:44.789
stories of someone who poured Baileys inside the vessel before
564
00:33:44.849 --> 00:33:49.759
it closed. It was their person's favorite alcohol. People put
565
00:33:49.880 --> 00:33:53.900
photographs over the composting vessel and many just wanted to
566
00:33:54.019 --> 00:33:58.160
sit beside their person as they were composting. Sometimes they'd
567
00:33:58.180 --> 00:34:00.880
bring a cup of coffee for them and just put
568
00:34:00.920 --> 00:34:01.799
it on top of the vessel.
569
00:34:01.819 --> 00:34:06.789
Holy cow, I wasn't ready for that. I saw one
570
00:34:06.849 --> 00:34:09.849
guy take his mother's soil and I saw him, he
571
00:34:09.869 --> 00:34:11.269
took the bag and he put it in the front
572
00:34:11.289 --> 00:34:13.469
seat and then I saw him put the seatbelt on it.
573
00:34:14.599 --> 00:34:17.280
And when you do this with all the wood chips
574
00:34:17.360 --> 00:34:21.000
and straw and alfalfa, you end up driving home with
575
00:34:21.380 --> 00:34:25.940
quite a lot of compost. Micah says it's about 250
576
00:34:25.940 --> 00:34:32.510
pounds or a dozen big burlap bags. As Blythe and
577
00:34:32.530 --> 00:34:35.570
I were winding up our trip, our last stop was
578
00:34:35.610 --> 00:34:40.510
to see how some people were using their compost. We
579
00:34:40.530 --> 00:34:43.489
drove up to visit some land that Micah's company had bought.
580
00:34:44.179 --> 00:34:47.500
To help restore. It was out on a country road.
581
00:34:48.179 --> 00:34:50.139
Felt like it was kind of in the middle of nowhere.
582
00:34:50.159 --> 00:34:53.219
Hey, this is nice. It's like up on a hill.
583
00:34:55.789 --> 00:34:56.530
In the wilderness.
584
00:34:57.090 --> 00:35:01.550
At the entrance was this big moss-covered tree. Ooh, slug.
585
00:35:02.090 --> 00:35:03.530
A dead slug there, Anne.
586
00:35:03.789 --> 00:35:04.190
I don't know.
587
00:35:04.489 --> 00:35:05.170
Slug's on the move.
588
00:35:05.530 --> 00:35:07.389
Slowly.
589
00:35:09.030 --> 00:35:12.329
Life was all around this area. It was just really green,
590
00:35:12.469 --> 00:35:16.880
tons of trees. But then there was this clearing where
591
00:35:16.900 --> 00:35:19.360
there were no plants. It was kind of like a
592
00:35:19.719 --> 00:35:25.860
gravel driveway. And then over to one side, we saw
593
00:35:26.079 --> 00:35:31.260
where someone had carefully placed some compost. What we're seeing
594
00:35:31.320 --> 00:35:33.869
is just sort of this very thin layer of compost
595
00:35:33.929 --> 00:35:37.989
and then little shoots, plants, lots of different kinds popping up.
596
00:35:38.429 --> 00:35:41.250
You know, I'm like imagining sort of all the little
597
00:35:41.269 --> 00:35:44.349
microbes working their way through the soil and making it healthier.
598
00:35:45.409 --> 00:35:47.829
Like your little microbes are set free to sort of
599
00:35:47.889 --> 00:35:51.679
live on and like do good work and do their
600
00:35:51.699 --> 00:35:53.599
little microbe thing and like make the earth better. I
601
00:35:54.280 --> 00:35:55.239
think that seems very lovely.
602
00:35:55.260 --> 00:36:00.050
I mean, this is beautiful to think that your remains
603
00:36:00.119 --> 00:36:06.760
could create a beautiful little garden. That is lovely. Put
604
00:36:06.800 --> 00:36:08.139
me under some gum tree.
605
00:36:08.159 --> 00:36:11.619
Some kangaroos, I assume, digging around the base of the tree.
606
00:36:11.639 --> 00:36:15.210
Exactly, crapping on my composted remains.
607
00:36:15.230 --> 00:36:18.030
It's just really such a beautiful image you've painted.
608
00:36:33.420 --> 00:36:34.239
That's Science Versus.
609
00:36:37.260 --> 00:36:37.719
Hello.
610
00:36:38.199 --> 00:36:38.980
Hello.
611
00:36:39.000 --> 00:36:39.980
Wendy, is that you?
612
00:36:40.000 --> 00:36:40.579
Can you hear me?
613
00:36:41.460 --> 00:36:44.309
Barely. Where are you? Are you getting composted right now?
614
00:36:44.329 --> 00:36:44.400
Oh.
615
00:36:45.809 --> 00:36:50.630
Wait. Hello, Wendy?
616
00:36:50.829 --> 00:36:52.769
Hello. Hello, Blythe, Terrell.
617
00:36:53.070 --> 00:36:58.750
Wendy Zuckerman? Oh my God, it's you?
618
00:36:59.190 --> 00:37:02.840
Blythe, how many citations are in this week's episode?
619
00:37:03.300 --> 00:37:05.179
We have... More than.
620
00:37:05.039 --> 00:37:08.960
60 citations in this week's episode. More than 60. And
621
00:37:09.019 --> 00:37:11.360
if people want to see these citations, where should they go?
622
00:37:11.719 --> 00:37:13.909
They should go to our show notes and click on
623
00:37:13.949 --> 00:37:16.289
our transcripts. And they'll be laid out in front of
624
00:37:16.349 --> 00:37:18.730
them in all of their science-y glory.
625
00:37:18.909 --> 00:37:21.429
Almost as if I was going to make like a
626
00:37:21.510 --> 00:37:24.260
laid out to rest. Nah, don't worry about it.
627
00:37:24.380 --> 00:37:24.960
Bye.
628
00:37:25.340 --> 00:37:26.159
Bye.
629
00:37:26.179 --> 00:37:27.039
Thanks, bye.
630
00:37:27.079 --> 00:37:28.780
Bye. Thanks, Wendy. Bye.
631
00:37:35.190 --> 00:37:38.480
This episode was produced by Blythe Terrell and me, Wendy Zuckerman,
632
00:37:39.019 --> 00:37:41.860
with help from Meryl Horne, Michelle Dang, Rose Rimler, Courtney
633
00:37:41.880 --> 00:37:45.329
Gilbert and Disha Bhagat. We're edited by Blythe Terrell and
634
00:37:45.349 --> 00:37:49.139
Caitlin Kenney. Checking by Eva Dasher. Mix and sound design
635
00:37:49.199 --> 00:37:52.679
by Sam Baer. Music written by Bumi Hidaka, Emma Munger,
636
00:37:52.840 --> 00:37:56.099
Bobby Lord, So Wiley and Peter Leonard. Thanks to all
637
00:37:56.159 --> 00:37:57.860
of the researchers that we got in touch with for
638
00:37:57.889 --> 00:38:04.230
this episode, including Dr. Lynn Carpenter-Boggs, Dr. Muriel Lepester, Jean F. Bonotel, Dr.
639
00:38:04.289 --> 00:38:08.309
Mark Paulett, Professor Kombla Che, Dr. Ruth McManus and Dr.
640
00:38:08.329 --> 00:38:12.110
Julie Rugg. A special thanks to Jimmy Olsen, Jonathan Goldstein,
641
00:38:12.389 --> 00:38:17.139
Julia Martin, the Zuckerman family and Joseph Lavelle-Wilson. I'm Wendy Zuckerman.
642
00:38:17.639 --> 00:38:28.070
Back to you next time. Okay, hello, hello, hello. All right,
643
00:38:28.090 --> 00:38:30.650
we're just having a quick break, a quick banana. But
644
00:38:30.690 --> 00:38:32.769
I realized I didn't wash my hands.
645
00:38:33.869 --> 00:38:36.210
After you ran your hands through the compost, you didn't
646
00:38:36.230 --> 00:38:40.130
wash them yet? No, did you? I snuck some sanitizer,
647
00:38:40.150 --> 00:38:41.210
but I can still see some flecks.
648
00:38:42.670 --> 00:38:43.989
Yeah, I still have flecks too.
649
00:38:45.050 --> 00:38:46.300
Do you want to go back inside and wash your hands?