Given that we know that AGW is real, and has a well understood physical basis, I think we need to react accordingly.”
Well, since the temperature is falling, there is no GW, much less AGW.
The amount of human-contributed CO2 in the atmosphere is one part in ten thousand.
This is the same ratio as one penny out of one hundred dollars. AGW is the magic penny theory. The idea that one-one-hundredth of one-one-hundredth of the atmosphere is controlling the temperature of the planet is fantasy, not science.