James B. PollackBorn 9 Jul 1938; died 13 Jun 1994 at age 55.American scientist who was a NASA researcher and who helped develop the theory that atomic war would result in a "nuclear winter" as a world-renowned expert in the study of planetary atmospheres and particulates using nongrey radiative transfer techniques. In other work, he examined evolutionary climate change on all the terrestrial planets and detailed models of the early evolution of the giant gas planets. He made fundamental contributions to the design of numerous NASA missions. Pollack discovered the first real evidence that the clouds of Venus are composed of sulphuric acid. He explained the reason for the paradox that Saturn's rings showed low microwave emissivity but high radar reflectivity. |
