In his weekly radio address, the Republican governor said that developing cutting-edge environmental technologies such as hydrogen fuel cells will conserve energy, curb pollution, protect natural resources - and be good for business.

"This is also creating new industries, opening new markets and bringing more jobs and more opportunity to everyone," Schwarzenegger said. "California is proving once again that our economy and our environment can work hand-in-hand."

Earlier this month, the governor attended the United Nations World Environmental Day Conference in San Francisco, where he won praise from environmentalists with a plan to reduce the state's emissions of greenhouse gases blamed for trapping heat in the earth's atmosphere and raising temperatures worldwide.

Schwarzenegger signed an executive order that calls for reducing the state's emissions of greenhouse gases to 2000 levels by 2010, 1990 levels by 2020, and 80 percent below 1990 levels by 2050.

"My environmental program will reduce the use of fossil fuels and replace them with more renewable energy sources like solar power, hydrogen and biomass technology," Schwarzenegger said Saturday.