The Anasazi, a once-flourishing tribe in the American Southwest, lived on bounties of corn, squash and beans. In 1276 A.D., ...
Smallholder farmers in West Africa's Sahel face a harsh and worsening climate. Rainfall is erratic, temperatures are rising, ...
Bolted into a concrete slab in a grassy field in Colesville, a 30-foot-tall metal tower with devices to measure weather ...
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