<http://schema.org/about>
"Just under a year ago, NASA released a map of marine dead zones. It helped us visualize the extent to which low-oxygen areas are harming ocean ecosystems. Now, there's an even better tool -- an interactive map from World Resources"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/natural-sciences/new-interactive-map-tracks-ocean-dead-zones.html>