“Bygones!”

Professor Guy McPherson teaches an audio course in conservation biology. It is described and available for registration here

Latest peer-reviewed journal article appears in the prestigious Elsevier series of journals:

McPherson, Guy R., Beril Sirmack, and Ricardo Vinuesa. March 2022. Environmental thresholds for mass-extinction events. Results in Engineering (2022), doi: https://doi.org/10.1016/j.rineng.2022.100342.