California’s push to tackle its chronic housing shortage gained fresh momentum after high-profile backers lined up behind Senate Bill 79, a measure that would streamline residential development within walking distance of rail, subway and rapid-bus stops. Billionaire climate activist Tom Steyer published an opinion piece arguing that SB 79 is essential to revitalize urban centers while advancing the state’s climate goals. Hours later, Oakland Mayor Barbara Lee publicly endorsed the bill, saying it would set statewide standards to ensure every community adds its share of new housing. Authored by Democratic state Sen. Scott Wiener, SB 79 seeks to raise allowable densities and speed approvals for projects near transit, a strategy supporters say will reduce car reliance and cut greenhouse-gas emissions. The latest endorsements add to a growing coalition of environmentalists, local officials and transit advocates pressing lawmakers to pass the legislation when the Legislature reconvenes.