In December, the EPA approved two California waiver requests, including its rule mandating that 100 percent of cars sold in the state be zero emission by 2035. The Trump administration could try ...

But environmental groups were quick to condemn the plan as an abdication of the EPA’s responsibilities to Americans. In climate-conscious California, they say, it could reverse decades of progress.

But environmental groups were quick to condemn the plan as an abdication of the EPA's responsibilities to Americans. In climate-conscious California, they say, it could reverse decades of progress.