The Supreme Court said 15 years ago that the EPA has not only the authority but also the obligation to regulate greenhouse gasses. Now, in a case coming before the court later this month, that landmark ruling may get overturned.On today's episode of Parts Per Billion, our weekly environmental podcast, Bloomberg Law's Jennifer Hijazi explains the stakes of West Virginia v. EPA, which the Supreme Court is scheduled to hear Feb. 28. She talks about the circuitous route the case took to get to the highest court in the land, and how it may end up overturning, or at least gutting, the famous Massachusetts v. EPA opinion from 2007.Do you have feedback on this episode of Parts Per Billion? Give us a call and leave a voicemail at 703-341-3690. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.