Allegiance to theory changes with the wind



In Peter Hobbs' “Clouds: Their Beauty and Challenge,” (Eos, March 29, 1994) a few points are deserving of comment.

He is indeed correct that “The cloud seeding hypothesis was based on a very simple, naive picture of the factors that control precipitation in real clouds.” It is worth noting that at the time almost the entire meteorological community shared the naive view that all precipitation particles begin as ice crystals according to the theory of Tor Bergeron. There can be little doubt that 4 decades hence some of the most cherished ideas of today will also appear to be naive. Hobbs' urging that we constantly question our own conclusions is good advice.