As the Biden administration wrestles with implementing executive orders on climate change, the president will be proceeding without someone environmentalists see as one of the most skilled and effective regulatory tacticians in the country.
Nevada's governor has announced that the state will adopt tougher emission standards for vehicles set by neighboring California, a blow to the Trump administration's efforts to roll back vehicle standards passed under the Obama administration.
The Central Valley has some of the most polluted air in the country. And the White House's recent assault on the state's environmental regulations could make it worse.
