Martha Irvine/AP
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Vertical Farms Take Root
Martha Irvine/AP
The indoor, multi-level farms that are sprouting up near urban areas in the U.S....
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Farmer Payments Face Budget Diet
J. Scott Applewhite / AP Photo
Axing crop subsidies--in an election year?...
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Wangari Maathai on Women's Role in Conservation
John McConnico / AP
More than three decades ago, Wangari Maathai came up with the idea of using economic incentives to...
