<http://schema.org/about>
"While the Greenland Ice Sheet has been known to be gradually melting over the years, new evidence shows that certain areas are thinning faster than others."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/climate-weather/stories/greenland-ice-sheet-is-thawing-irregularly>