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PHOTOGRAPH BY RANDY OLSON, NAT GEO IMAGE COLLECTION
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Thanks, climate change: Since the 1880s, America’s Corn Belt has grown to produce about a third of the world’s corn, and produces 20 times more than it did in the 1880s on just about double the land area. Over the last 15 years, however, the improvements have been less technological and more climate related, Alejandra Borunda reports. According to a new study, climate change has recently added milder weather and longer growing seasons. But how long, Borunda examines, will the good times last? (Pictured above, packing down a mound of corn at a Nebraska feedlot before a storm.)
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