New York Times: Gov. Arnold Schwarzenegger signed an executive order Tuesday requiring that California draw 33 percent of its electricity from renewable sources like solar and wind power by 2020. The requirement is stricter than any other state’s except Hawaii’s, which calls for 40 percent by 2030. “Right now, we are relying too heavily on coal-fired power plants,” Mr. Schwarzenegger said at a news briefing in Sacramento, shortly before signing the order. About half the 50 states have …