Paul Mayewski is an internationally acclaimed glaciologist, climate scientist, and polar explorer, and is director and a professor in the University of Maine’s Climate Change Institute. He has led over 55 expeditions to Antarctica, Greenland, the Himalaya, the Andes, and the sub-Antarctic Islands. Mayewski has also made numerous first ascents in the Transantarctic Mountains and has traversed more than 25,000 kilometers over Antarctica. Mayewski’s many scientific achievements include documenting naturally and human-produced changes in atmospheric chemistry and discovering the behavior of abrupt climate change events in the atmosphere. He has also won numerous honors, including the first internationally awarded Medal for Excellence in Antarctic Research and the Explorers Club Lowell Thomas Award.