Did the Environmental Protection Agency (EPA) rely on flawed science when it ruled carbon dioxide was a harmful pollutant, needful of regulation?

That’s one question Virginia and Texas seek to resolve with a lawsuit against the EPA accusing the agency of using known erroneous reports as an excuse to limit greenhouse gas emissions.  Here’s another one: did the EPA use agenda-driven science – from the Intergovernmental Panel on Climate Change (IPCC) – rather than independent science, as required by law, to arrive at its ruling?