08 May '11, 5am

Climate Change Shrinks Global Crop Yields, Study Finds

Climate Change Shrinks Global Crop Yields, Study Finds

Climate change has caused staple crop yields around the globe to decrease significantly since 1980 according to a new study published in Science Magazine . The research showed an association between weather trends and a 3.8 and 5.5 percent decline in global corn and wheat yields , respectively. The shortfall equals the annual yield of corn in Mexico, some 23 metric tonnes, and wheat in France, about 33 metric tonnes (Raw Story ). Using U.N. Food and Agriculture Organization data going back to 1980 for crop yields in all major crop-growing regions of the world, and pairing that with temperature and precipitation data for their growing seasons, researchers found that warming temperatures were reducing yields—although changes in precipitation did not appear to be having an effect, yet (Scientific American ). Although single digit percentages might not seem signifiant to the a...

Full article: http://www.care2.com/causes/global-warming/blog/climate-c...

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