Sergey Zimov, a geophysicist, identified that Arctic permafrost contains roughly as the Earth's atmosphere. As global temperatures rise, this frozen soil thaws, allowing microbes to convert organic matter into carbon dioxide and methane, creating a dangerous feedback loop. 2. The Pleistocene Theory
Zimov’s core thesis is that the disappearance of the (a highly productive grassland) was caused by human overhunting of large herbivores rather than climate change alone. He argues that restoring these large grazers can physically protect the permafrost: franchesca zimov
The work of the Zimovs represents a bold, interdisciplinary attempt to avert a "carbon bomb"—the massive release of greenhouse gases from thawing Arctic permafrost. 1. The Permafrost Crisis this frozen soil thaws