Upwind air pollution is back in court.

Maryland and Delaware are taking the EPA to court over the agency's lack of action against upwind states over air pollution. Plus, two national agencies report the 2010s were the hottest decade on record. And, some largely fossil fuel power producers are supporting FERC's decision to set a price floor at the nation's largest capacity market, as they argue the decision won't hobble the growth of renewable energy. Find more on the show at politico.com/energy-podcast.