Junk Science Returns to the White House

from RealClearPolitics:
Did you catch the recent peer-reviewed article by Princeton's Tim Searchinger in Science magazine on the impact of biofuels on global warming? The authors found that "corn-based ethanol, instead of producing a 20% savings, nearly doubles greenhouse emissions over 30 years and increases greenhouse gases for 167 years. Biofuels from switchgrass, if grown on U.S. corn lands, increase emissions by 50%." Has the White House called for a halt on ethanol subsidies and blending mandates? Is Obama asking legislators to heed the scientific evidence and pull back from this widely recognized economic and ecological blunder? No. Does this policy sound scientific or political?