AAP: California, the homeland of urban sprawl and the-hundred mile commute, is getting a makeover in the name of global warming. Governor Arnold Schwarzenegger has signed a bill to crack down on car-centric new developments as part of a plan to reduce the state’s carbon emissions by 30 per cent by 2020, the San Francisco Chronicle reported Wednesday. The centrepiece of the plan involves reducing urban sprawl by introducing new planning regulations that would shorten the distances …