Doesn’t Bjorn still believe CO2 is the culprit and man is the main contributor?
I haven’t heard that.
His main thesis is that, because of Western-style capitalism, the planet has gotten 30% cleaner every ten years for the past 3 decades. He thinks there is still a lot we need to do about pollution, but if he believes man’s activities are causing GW, then that’s news to me, and he’s wrong on that point.