With extreme heat and the worst drought in half a century continuing to plague the farm states, there are important lessons to be learned for all of us - farmers, consumers and the world's poorest populations alike - about the effect of climate change.

The Agriculture Department announced this season's first major crop yield forecasts, and they weren't pretty: a nationwide average of 123.4 bushels of corn per acre, the lowest level since 1995. Soybean yield is expected to be low too, though not as bad as corn.
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