James Hansen quoteJames Hansen [1941-0]
American Scientist 
Quote rank: 122
| Several times in Earth's history, rapid global warming occurred, apparently spurred by amplifying feedbacks. In each case, more than half of plant and animal species became extinct. New species came into being over tens and hundreds of thousands of years. But these are time scales and generations that we cannot imagine. |
SourceThe script ran 0 seconds.
