<http://schema.org/alternativeHeadline>
"The latest tag-team effort from the EPA and the Department of Transportation is an ambitious one: the 60 mile per gallon car."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/energy/blogs/new-mpg-standards-will-lead-to-political-debate>