Copyright© 2007
University of Washington, unless indicated otherwise
- peru07.png, se_peru.png, rainier.png, and argentina.png by Ursula Valdez; Copyright© 2006
- biosus_banner.png by Amy van Buren, Copyright© 2006
- landfill_hawaii.png by Eric Guinther, from http://en.wikipedia.org/wiki/Image:Landfill_Hawaii.jpg
- solarcooker.png in public domain, from http://en.wikipedia.org/wiki/Image:Solar-Panel-Cooker-in-front-of-hut.jpg