<http://schema.org/alternativeHeadline>
"For the first time in a decade, the world's carbon emissions decreased, but it's not exactly because we wanted it that way."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/blogs/economy-plummets-and-so-does-pollution-sort-of>