San Francisco Takes on EPA at the Supreme Court, a Surprising Case for Green-Thinking City

The Supreme Court heard arguments on Wednesday in a significant environmental case brought by San Francisco — one that some city officials are surprisingly hoping to lose.

San Francisco is suing the Environmental Protection Agency because it argues that current law makes the city responsible for more than its share of water pollution, sparking a legal battle that environmentalists fear the court’s 6-3 conservative majority could use to roll back clean water protections on a national scale.