Forget ice sheets melting and sea levels rising. Global warming's biggest threat may be heat that wilts crop production across much of the globe, says a UW scientist.
By the end of this century, the odds are higher than 90 percent that average temperatures during the growing season will be higher than ever before in recorded history across a big swath of the planet, says the analysis published today in the journal Science. "I'm not worried about Greenland sliding into the sea. I'm not worried about sea levels going up," said UW atmospheric sciences professor David Battisti. "This is probably the most compelling reason why we need to deal with global warming."