<http://schema.org/alternativeHeadline>
"A researcher predicts that we'll add 2.6 billion people to the Earth by mid-century, and 'Who Killed The Electric Car' is released on DVD."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/home-blog/mnn-earth-days/blogs/november-14>