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What happens when thawing permafrost changes the chemistry of a river?
In this episode of The Climate Translation, Dr. Mac explores the strange orange rivers appearing across parts of Arctic Alaska. These waterways may look polluted, but in many cases the source is natural chemistry triggered as thawing ground allows water and oxygen to reach minerals that were previously frozen away. Iron, sulfuric acid, and other metals can then move into nearby streams, turning rocks orange and altering water quality far downstream.
The episode also examines what these changes could mean for aquatic ecosystems, including Dolly Varden spawning habitat, and why not every Arctic river is destined to rust. Climate change is opening new pathways beneath the surface, but local geology, groundwater, and river chemistry determine what happens next.
CC0 Music from Charles Korpics - I want to Live! (Again)
رونوشت 🔗
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In my research travels, I've spent time in Alaska and witnessed the beauty of the land
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there.
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The mountains rise above the ground, forest and grasslands stretched to the skyline and
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rivers cut through the landscape.
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But what would you think if you were hiking there and came across a river that was orange
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with rocks along the bottom coated with som…
