Slate: A gigantic, steaming-hot mound of compost is not the first place most people would search for a solution to climate change, but the hour is getting very late. "The world experienced unprecedented high-impact climate extremes during the 2001-2010 decade,' declares a new report from the United Nations' World Meteorological Organization, which added that the decade was "the warmest since the start of modern measurements in 1850.' Among those extreme events: the European heat wave of 2003, which in a...