<http://schema.org/alternativeHeadline>
"More than half of Republicans now agree that most scientists think global warming is occurring, up from a low of 37 percent in 2011."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/climate-weather/stories/republicans-become-more-concerned-about-global-warming>