By Rachel Leingang and Luige del Puerto | Arizona Capitol Times
In a much anticipated environmental case, a divided U.S. Supreme Court today ruled that the Environmental Protection Agency may not disregard costs in deciding whether to regulate coal-fired plants in order to reduce mercury and other toxic emissions.
The EPA “must consider cost – including, most importantly, cost of compliance – before deciding whether regulation is appropriate and necessary,” wrote Justice Antonin Scalia, who penned the majority opinion in Michigan v. EPA.