As Groundwater Dwindles, a Global Food Shock Looms
By mid-century, says a new study, some of the biggest grain-producing regions could run dry. By Cheryl Katz.
Continue Reading http://news.nationalgeographic.comBy mid-century, says a new study, some of the biggest grain-producing regions could run dry. By Cheryl Katz.
Continue Reading http://news.nationalgeographic.com
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