Global warming started 200 years ago, but human emissions of CO2 were bugger-all-of-nothing until after World War II. Humans have put out nearly 90% of all our CO2 molecules ever since the War started. We’ve put out 30% of all our emissions ever since the year 2000. The message hammered home over and over, is that temperatures don’t correlate at all well with our CO2 emissions and never have,