SACRAMENTO (AP) - California's housing shortage, which has pushed median home prices above $470,000, is spurring a variety of moves to change the state's 35-year-old environmental protection law, long considered the nation's toughest. Attempts by the state's home building industry to change the 1970 law, signed by former Gov. Ronald Reagan, are nothing new, but this year Republican Gov. Arnold Schwarzenegger and a growing list of Democrats are joining in. Key lawmakers are pushing bills to make it easier for developers to maneuver around the law, especially to build housing in downtowns and older urban neighborhoods. The growing momentum to...