https://phys.org/news/2018-07-cloud-formation-simple-thermodynamic-statistical.html

But University of Utah researchers may have found a way to greatly reduce the difficulty of predicting formation of clouds. The results, published today in Journal of Geophysical Research-Atmospheres could fill a key gap in scientists' understanding of how climate change may play out.

"We used simple thermodynamics," says atmospheric sciences professor Tim Garrett, "to predict that there should be many small clouds and few large clouds in proportions that obey simple mathematical laws."