Henry N. Pollack, Ph.D., has been a Professor of Geophysics at the University of Michigan for more than 40 years. Among his numerous publications is Uncertain Science…Uncertain World, published by Cambridge University Press in 2003.

In the scientific community, he has earned a reputation as one of the world's leading experts on the temperature of the Earth, both today and in the geological past. An award-winning teacher with a gift for explaining science to non-scientists, Pollack has taken a special interest in helping leaders in government, business, and the general public understand the scientific developments associated with global climate change. His specialties involve geophysics, global change, paleoclimate, geodynamics, and tectonophysics.

Over the course of his career, he has educated generations of students, published widely in scientific journals, led his department as chairman, served as an advisor to the U.S. National Science Foundation, testified before Congress, and launched the first international efforts to coordinate research into geothermal evidence of global climate change.

Pollack is a fellow of the American Association for the Advancement of Science (AAAS) and of the Geological Society of America and a member of the American Geophysical Union.