US News and World Report: Since the mid-1980s, the U.S. government, in an attempt to reduce the environmental fallout from large-scale farming, has been paying farmers to set aside less-than-ideal land for conservation. The results have been overwhelmingly positive: Soil erosion has been reduced; chemical and fertilizer runoff has eased; habitats for game birds and endangered species have been created and enlarged. The pushback to climate change has been equally noteworthy: In 2007, the lands trapped 50 million ... Link