<http://schema.org/alternativeHeadline>
"Taking a round-trip\u00A0flight from New York\u00A0to\u00A0San Francisco\u00A0means\u00A0you're generating\u00A0the global warming equivalent of two to three tons of carbon dioxide."^^<http://www.w3.org/2001/XMLSchema#string>
<http://qz.com/247734/why-awesomely-cheap-airline-flights-are-actually-terrible/>