Back when CO2 was declared a regulated pollutant, I said here that this was a good development. Because the EPA rules require that the agency prove that a material is hazardous before it can be regulated. This is the process that was abrogated back when Clinton declared second hand smoke to be a Class A Carcinogen.
This could finally be the thing that results in a rigorous, real examination of all this Global Warming nonsense. If so, it will be a very welcome development.
Have you been to the EPA website? They still celebrate Rachel Carson as the inspiration for the Agency.