<http://schema.org/alternativeHeadline>
"It can be better for the climate than gasoline, but this colorless liquid isn't always as green as it seems."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/translating-uncle-sam/stories/epa-is-corn-ethanol-worth-the-trouble>