"The Rocky Mountain Institute is an entrepreneurial nonprofit organization that fosters the efficient and restorative use of natural, human and other capital to make the world more secure, just, prosperous, and life-sustaining. We do this by inspiring business, civil society, and government to design integrative solutions that create true wealth." - RMI Mission Statement
The Rocky Mountain Institute is an organisation I stumbled across that really impresses me with both their aims and what they have already achieved. According to Wikipedia, their headquarters can sustain tropical plants through -40 degree (C or F?) winters, simply through the capture of sun's rays and the body heat of those that work there.
An inspiration; well worth exploring their web site.
Note: I first heard of them recently at a recent Innovation Breakfast. A speaker (John Swainston) recommended books by Amory Lovins. Lovins had been an activist for Friends of the Earth, but then decided there was no point attacking the prevailing paradigm if you don't formulate better alternatives. Thus the RMI was founded, by Lovins and his wife L Hunter Sheldon.