Former U.S. vice-president Al Gore said support for corn-based ethanol in the United States was "not a good policy", weeks before tax credits are up for renewal.U.S. blending tax breaks for ethanol make it profitable for refiners to use...
Some 98% of climate scientists that publish...
As much as 1 million times the normal level of methane gas has been found in some regions near the Gulf of Mexico oil spill, enough to potentially deplete oxygen and create a dead zone, U.S. scientists said on Tuesday.Texas A&M...