Reader “serioussam” sent this graph over. If you accept the warmist theory that the cooling after 1945 was due to sulfate emissions, then you also have to accept the fact that the subsequent warming was boosted by removal of those same sulfates.

Without the sulfate cooling effect, the graph then shows constant warming since 1880 – despite the fact that very little CO2 was accumulating in the atmosphere prior to the 1940s

Apparently CO2 is not the cause of the warming. Thanks Sam!