Study: Global warming reduced corn, wheat harvests

Agence France Presse: Climate change has stunted the worldwide increase in corn and wheat yields since 1980 by 3.8 and 5.5 percent respectively, according to a new study in the journal Science. Without global warming, total harvests of both crops would have been significantly larger than they were, the statistical analysis found. The shortfall equals the annual yield of corn in Mexico, some 23 metric tonnes, and wheat in France, about 33 metric tonnes. One of the country's with the largest crop loss was Russia,......

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