Ian Howat is a glaciologist focused on the dynamics of glaciers and ice sheets, and particularly their rapid response to climate forcing. He uses a wide range of observations from remote sensing, in situ data networks and field campaigns to constrain quantitative models of ice flow. These models are used to predict future changes in ice sheet mass balance and rates of sea level rise. Howat has been a participant and leader on numerous science expeditions to Antarctica, Iceland and Greenland. Howat is currently the Director of Ohio State's Byrd Polar & Climate Research Center.