The D.C. Circuit’s review of litigation over EPA’s power plant greenhouse gas standards is taking on greater importance after the Supreme Court rejected calls to stay the high-profile regulation, which includes strict emissions limits for existing coal plants and new gas plants. The appellate court is considering the litigation, known as West Virginia, et al. v. EPA, et al. , on an accelerated schedule -- with briefing slated to conclude in the coming days and oral arguments set for Dec...