The Supreme Court heard oral argument in West Virginia v. EPA on Monday, a case that could result in the narrowing of the agency's authority to regulate greenhouse gas emissions.

But, to some surprise, a few of the court's conservative justices posed tough questions to the attorney arguing against the EPA, which may indicate they're open to siding with the agency in this case.

On today's episode of Parts Per Billion, our weekly environmental podcast, we're joined by Bloomberg Law's Jennifer Hijazi to break down what happened at the high court on Monday. Jennifer explains why, even if the court doesn't end up siding with the EPA, the agency has likely avoided the potential worst-case scenario some had feared going into the argument.

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