This chapter dealt with the nature of the basic processes which determine the response of climate , and found numerous problems with model treatments â `` including those of clouds and water vapor . The chapter was summarized with the following sentence : ` Understanding of climate processes and their incorporation in climate models have improved , including water vapor , sea-ice dynamics , and ocean heat transport . ' Taking Chapter 7 , Physical Processes , on which he worked , he said that it `` found numerous problems with model treatments â `` including those of clouds and water vapor '' , the chapter was summarized in the single sentence `` Understanding of climate processes and their incorporation in climate models have improved , including water vapor , sea-ice dynamics , and ocean heat transport . ''