The projected warming has shifted from 5 degrees to 2.6 degrees. So obviously quite a bit has been done. For example Britain is down 50% from 1990 levels. It's not enough, but to say "very little has actually happened" is disingenuous.

IMO, the biggest thing that has been done is that renewable power and EV transportation have now become cost competitive. Both of those, especially the first, required a lot of government subsidization to get volumes up so that the learning effect could take effect.5