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Despite criticism from the administration, several US military leaders plan to continue to push sustainability efforts. The Navy uses gas-electric hybrid warships at sea to reduce fuel usage, and the military produces enough renewable energy to power 286,000 US homes, according to the Department of Defense.

General Mills, Unilever and the Food Waste Reduction Alliance have joined the USDA's Food Waste Challenge as founding partners.

Thanks to the U.S. fracking boom, the world is coasting on a wave of cheap natural gas. As far as official forecasts suggest, that wave should last for decades to come. But a new analysis that takes a higher-resolution look at shale gas suggests that wave could crash far sooner than producers expect. And with the rest of the world anticipating cheap American gas, a crash could sends shocks rippling across borders