<http://schema.org/about>
"Large scale hydropower rightly riles environmentalists and often social justice activists as well. In comparison small scale hydro, which doesn't require the large dams or even dams at all,"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-technology/small-scale-hydropowers-low-eco-impact-overrated.html>