<p>This undated combo photo, provided by the University of Nebraska-Lincoln, shows corn residue after grain harvest, left, adjacent to a field section where corn residue was baled and removed after grain harvest in Jefferson County, Neb. Biofuels made from corn leftovers after harvest are worse than gasoline for global warming in the short term, challenging the Obama administration's conclusions that they are a cleaner oil alternative from the start and will help clima…
April 23, 2014
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Study: Fuels from corn waste not better than gas
Research casts doubt on global warming benefits of biofuels made with cornfield waste
Biofuels made from the leftovers of harvested corn plants are worse than gasoline for global warming in the short term, a study shows, challenging the Obama administration's conclusions that they are a much cleaner oil alternative and will help combat climate change.