00:03:50Earliest Atmosphere & Hydrogen
00:14:35Oxygenation and Snow Ball Earth
00:20:01The Albedo Effect
00:25:27Various Ice Ages
This episode covers the evolution of the climate, various levels of gases (including greenhouse gases such as carbon dioxide and methane), along with various punctuated cycles related to climate evolution. The episode also covers cyanobacteria and the evolution of the atmosphere.