you write about warming as a key, if not primary, factor in the previous mass extinctions.
In the case of triggers such as asteroid hits and massive volcanic activity, there must have been significant initial effects from aerosols, resulting in loss of vegetation, etc. Certainly traditional TV science always shows the dinosaurs keelng over from starvation. :)
I understand that anoxia from warming was the primary cause of the loss of marine species, but was warming also the key factor on land? Is there a sense of how the two effects stack up in terms of proportions?
Kaitlin Alexander is a PhD student in climate science at the University of New South Wales in Sydney, Australia. She became interested in climate science as a teenager on the Canadian Prairies, and increasingly began to notice the discrepancies between scientific and public knowledge on climate change. She started writing this blog at age sixteen to help address this gap in public understanding, and it slowly evolved into a record of her research as a young climate scientist. Read more