Anyone can switch their electric service in various LA/Orange County areas to electricity generated from environmentally friendly (and/or friendlier) sources such as wind and solar power. If an environmentalist really desires to be "a part of the solution rather than a part of the problem" -- walk their talk -- they would switch to green power.
The Loma Prieta Chapter of the Sierra Club has information on their web site showing the pros and cons of the different types of energy available to consumers at http://www.sierraclub.org/chapters/lomaprieta/greenpower/renewabletech.htm .
The Sierra Club publication The Planet has an article on green electricity as well which cautions the consumer about making a wise green-e choice: http://www.sierraclub.org/planet/199808/util.html .
The Los Angeles Department of Water and Power now has green power. Click here for information on the DWP's Electric Transportation program.
If you live outside the City of Los Angeles, visit Go Green Power and Green-E . These two web sites show various green power providers -- use caution when shopping by reading the information on the above two linked Sierra Club web sites. When you visit this web site, be sure to visit the individual company web sites as well -- as some of the services use a percentage of traditional ("system") power as well as renewable, and others use 100% renewable.