Welcome to the Association of American Geographers' Annual Meeting in Chicago, Illinois! You will be joined by fellow geographers, GIS specialists, environmental scientists, and other leaders for the latest in research and applications in geography, sustainability, and GIScience. The meeting will be held from April 21 - 25, 2015, and will feature over 4,500 presentations, posters, workshops, and field trips by leading scholars, experts, and researchers. The AAG annual meeting has been held every year since the association's founding in 1904.