<http://schema.org/image>
<http://media.treehugger.com/assets/images/2011/10/20100607-arctic-ice.jpg>
<http://www.treehugger.com/natural-sciences/arctic-ice-cover-at-lowest-point-in-past-several-1000-years-arctic-autumn-will-be-ice-free-this-decade.html>