I suspect a major part of the difference between CO2 and methane is the economic angles. We always knew what to do, but free-market/democratic systems could ne

I suspect a major part of the difference between CO2 and methane is the economic angles. We always knew what to do, but free-market/democratic systems could never get the political momentum for it. The scientists had to make their case against a large pro-CO2 lobby (the coal and existing electric industries) wielding a major economic bludgeon. I don't think methane has those same champions. The regulations and tech will face much less blowback.