Below is a very interesting open access paper.
Vajda, V., McLoughlin, S., Mays, C., Frank, T.D., Fielding, C.R., Tevyaw, A.,
Lehsten, V., Bocking, M. and Nicoll, R.S., 2020. End-Permian (252 Mya)
deforestation, wildfires and flooding—An ancient biotic crisis with lessons
for the present. Earth and Planetary Science Letters, 529, p.115875.
https://www.sciencedirect.com/science/article/pii/S0012821X19305679
Yours,
Paul H.