Allen Solomon retired as National Program Leader for Global Change Research in the US Forest Service in 2009. He is a plant ecologist who studied vegetation responses to climate and climate change. He held senior scientist positions with the US Environmental Protection Agency, the White House Office of Science and Technology Policy, Oak Ridge National Laboratory, and the International Institute for Applied Systems Analysis in Vienna Austria. He also served as Assistant Professor of Geosciences at University of Arizona and Professor of Forest Ecology at Michigan Technological University. In addition to 90+ research publications, he was a contributor to the 2007 Nobel Peace Prize awarded to the Intergovernmental Panel on Climate Change.