An extinction in the blink of an eye
MIT researchers find that the end-Permian extinction happened in 60,000 years — much faster than earlier estimates.
MIT researchers find that the end-Permian extinction happened in 60,000 years — much faster than earlier estimates.
Some 200 million years ago, an increase in atmospheric CO2 caused acidification of the oceans and global warming that killed off 76 percent of marine and terrestrial species on Earth.