<http://schema.org/description>
"When it comes to finding cleaner greener sources of electrical power, we&amp;#039;re going to have to start thinking out of the box a bit if we want to reduce carbon emissions and increase efficiency.  Coal, solar, wind and hydro may be the most common sources to power"^^<http://www.w3.org/2001/XMLSchema#string>
<http://inhabitat.com/cow-power-how-methane-will-power-your-house/>