I meant that took global warming itself is not a difficult challenge to solve with the technology currently available. Capturing carbon is energy intensive but not impossible.

But politically, the coordination problem is unsolvable. Until the effects of the warming become big enough that one of the more powerful agents involved has a clearly positive inventive gradient to actually expend that energy at a personal loss, without the cooperation of others. (Say, for instance, if a majority of US territory becomes uninhabitable due to semi-persistent fires, persistent droughts, etc, I'd expect the US to actually solve the problem irrespective of what the other powers are doing.)