<http://schema.org/about>
"All new homes in England will have to be carbon neutral by 2016, under proposals announced by the Department for Communities and Local Government. The UK's 21 million homes are responsible for 27% of carbon emissions; the plan to neutralize those"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/sustainable-product-design/all-new-homes-in-the-uk-will-be-carbon-neutral-by-2016.html>