Ethanol test for Obama on climate change, science

(AP) -- President Barack Obama's commitment to take on climate change and put science over politics is about to be tested as his administration faces a politically sensitive question about the widespread use of ethanol: Does it help or hurt the fight against global warming?

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<p><a href="http://www.physorg.com/news160593602.html">Ethanol test for Obama on climate change, science</a></p> <p>(AP) -- President Barack Obama's commitment to take on climate change and put science over politics is about to be tested as his administration faces a politically sensitive question about the widespread use of ethanol: Does it help or hurt the fight against global warming?</p>