Yup, but I don't have a pre-formed policy that I want the One Global Dictator to implement (believe me, if I did I'd have put it forward at the last ZOG meeting).
I want GHG emissions to be reduced, I realize that government intervention is the only way to achieve this, and I understand that laws are at their core backed by the threat of organized violence, even the ones we don't think of that way (when was the last shootout over the ADA?).
What I'll support or oppose or be wishy-washy about depends on what options seem to be politically feasible at a given time, the extent of the controls necessary, how the status quo has changed, blah blah blah. So right now that means hoping the US passes something in the next decade or so to limit domestic GHG levels (ain't shit happening the next three years), and that the EU/Japan/Anglosphere takes it seriously enough to make it a priority and from there finding a way to bring Russia/China/India on board.
Which may very well be impossible. At which point I'd strongly oppose anyone suggesting we invade those countries or bomb both of Kenya's gas stations or whatever. If there's no way to ratchet down CO2 without massive shooting wars, then just toss me onto the mitigation/adaptation bandwagon.
But I don't think that likely failure on the international level means giving up on what would be a precondition to any small chance of success (just like I don't have high hopes for a huge diplomatic breakthrough with Iran, but I don't think Schumer and whoever should get their sanctions through cause it's a lost cause anyways), and similarly I'm more sanguine than you about the unintended consequences if a global understanding on CO2 somehow became reality. If we're in a stealth ice age, I'm pretty confident people wouldn't have forgotten how to drill for that stuff and burn it.