Henry Pollack is a Professor of Geophysics (Emeritus) at the University of Michigan. He has taught at every level of the curriculum, from introductory courses for non-scientists to specialized graduate seminars. His current research activities focus on the record of global warming, as recorded by the temperatures in the rocks beneath the Earth's surface. The Earth's crust retains a thermal archive of past climate that presents a glimpse of what the Earth was like in the pre-industrial era, and which enables scientists to assess the human impact on Earth's climate.
Pollack has served on many advisory panels for the National Science Foundation, testified before National Academy of Sciences and U.S. Senate committees, and provided briefings about climate change to Congress and the White House. He has published widely in scientific journals, is a Contributing Author to the Nobel Peace Prize-winning Intergovernmental Panel on Climate Change (IPCC) 2007 Assessment Report, and a member of the training faculty of Al Gore's Climate Project. He is an elected fellow of the American Geophysical Union, the Geological Society of America, and the American Association for the Advancement of Science, and the author of "Uncertain Science ... Uncertain World", published by the Cambridge University Press in 2003, and of "A World Without Ice", published by Penguin in 2009.