I share your skepticism and solution.The tougher part of this is that there is no reason to trust either side to stick to the bargain. Conservative politicians that do not believe global warming is a serious problem will use the same tactics to get around enforcing restrictions that they've used to get around all other environmental protections. Liberal politicians that believe abortion is a central reproductive right for all women will use similar tactics to get around restrictions on abortion procedures.
On top of this, here in the USA, I don't really believe that the Democratic Party is all that committed to fighting climate change OR that any of the drastic solutions would (a.) actually reverse anything, (b.) not cause even worse environmental and social problems or (c.) even get passed into law even if the Democrats retained control of Congress. I just don't have any faith that any US politician holding office today has the will to face climate change OR that anyone funding a US politician or the majority of people that would put them into office have climate change and global warming at the top of their minds when voting. I have no doubt that a politician would lose more votes by compromising on abortion rights than they would win by prioritizing global warming reductions.
I think this will become even more true when Roe v. Wade is eventually overturned or completely neutralized. Again, the solution will not come from giving government more powers as that's exactly what got us into this mess in the first place. That should have been the lesson of the World Trade Center and Pentagon attacks. The government and military had all the power and intelligence they needed to prevent them, but when they proved themselves completely incompetent, they asked for more power and it led to two costly wars, a surveillance state violating individual privacy, as well as actual torture and murder that they were allowed to keep secret (and probably still commit).
We'll need to take more power and freedom for individuals to force the necessary changes.