Although it originally aired on PBS in November 2009, you may have missed the documentary Power Paths http://www.pbs.org/independentlens/power-paths/film.html about tribal efforts to establish “green” economies and clean energy on reservations. The program can be seen on PBS again this November (2010) or purchased on DVD at http://www.powerpaths.tv/
From PBS: “POWER PATHS offers a unique glimpse into the global energy crisis from the perspective of a culture pledged to protect the planet, historically exploited by corporate interests and neglected by public policy makers.
The film follows an intertribal coalition as they fight to transform their local economies by replacing coal mines and smog-belching power plants with renewable energy technologies. This transition would honor their heritage and support future generations by protecting their sacred land, providing electricity to their homes and creating jobs for their communities.”