Department of Physics, University of California, Berkeley
Formerly: experimental and theoretical nuclear physics, astrophysics, geophysics and climate change. Inventor of AMS (radioisotope dating); founder of two cosmology projects that led to Nobel Prizes. Founder and Scientific Director, Berkeley Earth Surface Temperature Project. Fellow: American Academy of Arts and Sciences; American Physical Society. Author: Energy for Future Presidents; Physics for Future Presidents; Ice Ages and Astronomical Causes. Recipient of awards: MacArthur Prize; Alan T. Waterman Award, US National Science Foundation; others.