<http://schema.org/about>
"The Great Lakes are looking very attractive; everyone seems to think that there is lots of water to go around. In fact, there is not quite as much as people think, and it is not so pure as it should be. The Sierra Club of Canada notes:"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-water/protecting-the-great-lakes.html>