That&#x27;s true. CO2 photo-thermal effects have been known for a long time.<p>I have no dog in this hunt - but I believe that short- and medium- term projections that start diverging from actuals almost on the first day are a problem for getting broad support for the hypothesis.<p>And it&#x27;s a very interesting question, don&#x27;t you think? Why aren&#x27;t temperatures going up more? Is the earth modulating it somehow? The biosphere appears to attempt to maintain some kind of thermal homeostasis, and appears to be better at cooling the hot than warming the cold. How does that work?