Dr. Konrad Steffen is the Director of the Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado, Boulder. His research studies climate and cryosphere interaction in polar and alpine regions using ground and satellite measurements as well as climate system modeling. He has led field expeditions to the Greenland ice sheet and other Arctic regions for the past 34 years to measure the dynamic response of ice masses under a warming climate. Dr. Steffen serves on the Science Steering Committee of the World Meteorological Organization’s Climate and Cryosphere project and has helped organize PARCA: Program for Arctic Regional Climate Assessment, a joint NASA/NSF initiative. Dr. Steffen has been a Fellow of CIRES since 1991 and is a professor in the Department of Geography where he teaches climatology and remote sensing courses. His research has been studied by international scientists, experts and governmental officials and featured on television, radio, and in many scientific journals and popular magazines.