Ken Gregory obtained his BSc, PhD and DSc from the University of London, was made CBE in 2007 for services to geography and higher education, and is currently President of the British Society for Geomorphology. Research interests include river channel change and management, palaeohydrology and the development of physical geography, and he has written more than 140 papers, authored and edited 30 books including The Earth’s Land Surface (2010) and The SAGE Handbook of Geomorphology (2011). He has 3 Honorary degrees, and received the Founder’s Medal of the Royal Geographical Society (1993), the Linton award of the BGRG (1999), and the Geographical medal of the Royal Scottish Geographical Society (2000). Anthony Brazel is a retired geographer and climatologist who has written over 100 professional articles and reports on climate, focusing primarily at the local and regional scale. He has served as Laboratory of Climatology Director from 1979-1988, Arizona′s governor-appointed State slimatologist from 1979-1999, geography departmental chair from 1991-1997, and manager of the Southwest Center for Environmental Research and Policy through the Center for Environmental Studies from 2001 to 2003. He is former member of the Board of Urban Environments of the American Meteorological Society and current member of the scholarship committee of the International Association on Urban Climate. He is a Fellow of American Association of the Advancement of Science and editor of the Journal of the Arizona-Nevada Academy of Science.