Even if global temperatures rise slowly, climate change could slash the yields of some of the world's most important crops almost in half, according to a new study co-authored by an N.C. State University scientist.
The study, recently published online in Proceedings of the National Academy of Sciences, looked at three frequently used scenarios for global warming. It found that the average U.S. yields for corn, soybeans and cotton could plummet 30 percent to 46 percent by the end of the century under the slowest warming scenario, and 63 percent to 82 percent under the quickest.
"There are some caveats, but this is a real cause for concern," said Michael Roberts, an assistant professor of agricultural and resource economics at NCSU.
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