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How is coordinating on global warming not a hard technical challenge? Politics is inherently a hard problem. And even if we were able to extricate politics from the discussion, it's a hard problem to define the optimal benchmarks and criteria for emissions reduction, across all countries and jurisdictions.

(by definition, defining these criteria for the world would necessarily involve politics)

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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.)

I think it's simply a matter of priority. We still haven't figured out how to feed large portions of the human population and the impact of that is much more immediate.

Solution for coordination problem https://issues.org/climate-clubs-to-overcome-free-riding/

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