Seventeen other states are also signed onto California’s rules, making the suit a nationwide red-blue brawl over how the automotive sector will be required to respond to climate change.

The disproportionate impacts of climate change on the poorest communities are already affecting pockets of the U.S.

Other states, which have been slower to adopt solar, are starting to experience the same thing. Nevada, which generates 23 percent of its power from solar, has also seen deepening duck curves.

How will California be impacted by climate change? California is the most populous state in the United States and a global economic powerhouse. The state, however, has one of the world’s most varied ...