The EPA's Ability to Fight Climate Change Hinges on the Supreme Court

This photo taken Friday, Oct. 3, 2014, shows the U.S. Supreme Court in Washington.

The Supreme Court is expected to release an opinion in the case West Virginia v. Environmental Protection Agency soon. Michael Gerrard, professor of law at Columbia Law School and the founder and faculty director of the Sabin Center for Climate Change Law, previews what the case is about and the implications for combating climate change, especially if the court rules against the EPA.