Last week, the U.S. Court of Appeals for the District of Columbia Circuit upheld the Obama administration's Mercury and Air Toxics rule. How significant is this win for U.S. EPA? What is the impact of the ruling on future air regulations coming out of the agency? During today's OnPoint, James Rubin, counsel in the global energy, transport and infrastructure sector at Dentons and a former Department of Justice representative to the White House Climate Change Task Force, breaks down the ruling and its significance. Today's OnPoint will air at 10 a.m. EDT.