I feel the big takeaway from COP26 and its predecessor events is that realistically, we simply won't do anything on a global scale to reduce CO2 emissions to any sustainable level. Not without China participating, not without nations making any genuine commitments, not with the lax timetables proposed and the various fossil interest lobbies blocking. This is simply not happening.<p>The upside is, that once we accept that this is not happening we can move on from these attempts and fully focus on technologies that capture/remove carbon from the air. This one to efficiently convert CO2 into starch (<a href="https://newatlas.com/science/artificial-synthesis-starch-from-co2/" rel="nofollow">https://newatlas.com/science/artificial-synthesis-starch-fro...</a>) comes to mind. I have no insight of my own to contribute, but David Friedberg argued on the all in podcast that a 25 square-mile areal of these would be enough to capture all CO2 currently in the atmosphere. (again, just quoting, not able to verify this myself)