At the end of the #Permian, around 252 million years ago, volcanoes in the Siberian Traps spewed lava over an area almost the size of Australia, igniting massive wildfires, burning vast oil and coal deposits, and pouring #greenhouse gases into the #atmosphere.

After such apocalypses, Earth’s #climate typically reverts more or less to normal within 80 000–200 000 years, thanks to the interaction of the global carbon and silica cycles via #silicate weathering.

https://eos.org/articles/clays-may-have-slowed-earths-recovery-after-the-great-dying