In reality, global temperature changes preceded changes in CO2 levels by hundreds to thousands of years. The causality is very nearly the opposite of what Gore insinuates. When ocean temperatures fall, seawater retains more dissolved CO2, and the expansion of polar sea ice further limits sea-to-air CO2 flux. Conversely, when the oceans warm, more dissolved CO2 outgases into the air. At most, changes in the air’s CO2 content had an amplificatory effect on climate changes already under way.
Thank you. I am not a scientist, as you can tell. What other event(s) would cause the earth to warm? Obviously, we emerge from ice ages for reasons unrelated to CO2. But in the late Paleozoic and late Cretaceous flood volcanic activity for thousands of years pumped huge quantities of greenhouse gases into the atmosphere which did cause warming.