Bellingham WA.  Bellingham has a long-range plan that would compel city homeowners to stop using natural gas for heating.  It would become the first city in the country to force a wholesale conversion of homes, new and old, from natural gas to electric heat pump technology.  Details at www.greenbuildingadvisor.com/washington-city-ponders-a-future-without-gas-heat  Bellingham has already adopted several other measures to lower its carbon emissions.