<http://schema.org/about>
"Many contest the problem that arises from the methane released when the planet's zillions of cattle collectively belch, citing a huge contributor to carbon emis"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/climate-weather/stories/australian-scientists-want-to-make-cows-more-like-kangaroos>