The Official Website of

"The Magazine of the American Scene"
 
(c) 2015 The Society for
the Advancement of Education.
All Rights Reserved.
Search keyword(s): ' George Erickson'
 
Don't Say We Weren't Warned George Erickson
Category: Eye on Ecology Published: September 2021
"We now have evidence that the level of CO2 and other greenhose gases will, within just a few decades, equal those that caused the Permian extinction some 250,000,000 years ago when more than 95% of oceanic and 70% of terrestrial species died."