The EPA’s proposed rule is aimed at scaling back carbon emissions from existing power plants, the nation’s largest source of greenhouse gases. It’s scheduled for a public rollout June 2, after months of efforts by the administration to publicize the mounting scientific evidence that rising seas, melting glaciers and worsening storms pose a danger to human society. “This rule is the most significant climate action this administration will take,” said Kyle Aarons at the Center for Climate and Energy Solutions, one of a host of groups awaiting the rule’s release. Sen. Sheldon Whitehouse (D-R.I.) has urged the EPA to “go...
