[uscabjd]

Thanks. Why would this be?

[CedarDave]

It's explained this way in the rebuttal:

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.