CHRISTOPHER RAPLEY is director of the Science Museum London and professor of climate science at University College London, following a decade as director of the British Antarctic Survey and 4 years as executive director of the International Geosphere-Biosphere Programme at the Royal Swedish Academy of Sciences in Stockholm. Prior to that, Dr. Rapley spent an extended period as professor of remote sensing science at University College London. He and a U.S. colleague were the driving force behind the International Polar Year 2007 to 2008. He is a fellow of St. Edmund’s College in Cambridge, a fellow of University College London, and an honorary professor at the University of East Anglia. His interests are in climate change and Earth-system science, as well as a more general interest in the organization, leadership, and communication of science. He was awarded the 2008 Edinburgh Science Medal for having made a significant contribution to the understanding and wellbeing of humanity.