...buildings energy self-sufficient and carbon neutral by 2030

Once again this winter, as a recession settled over the country, millions of Americans struggled to heat their homes. Come summer they'll have to figure out how to keep their air conditioners going. On top of the financial crisis, the country faces an energy crisis because we are burdened with buildings powered by fossil fuels that waste that power through inefficiency.


http://www.sierraclub.org/sierra/200903/create.aspx