Practical greening of any house:

http://articles.moneycentral.msn.com/Investing/StockInvestingTrading/EasyWaysToGreenYourHouse_SeriesHome.aspx

http://www.thegoodhuman.com/2007/10/30/35-low-cost-ways-to-green-your-lifestyle/

1994 Clinton White House efforts

http://eetdnews.lbl.gov/cbs_nl/nl3/greeningwhite.html

1993 Greening the White House project

http://www.rmi.org/images/PDFs/BuildingsLand/D94-09_GrnWhiteHouse.pdf