AdvertisementGov. Brown's Biggest Climate Foe Isn't Trump. It's Car-Loving Californians03:52Download AudioResumeSeptember 13, 2018Lauren SommerfacebookEmailModel 3 sedans sit on display outside a Tesla showroom. For California to reach its ambitious climate change goals, every vehicle sold by 2040 in the state will have to be a zero-emissions vehicle. (AP)