Climate change has caused dramatic changes in the Athabasca Glacier in Jasper National Park, Alberta (top: 1917, photo by A.O. Wheeler; bottom: 2011, photo by The Mountain Legacy Project), which affects the annual regional water availability and increases the risk of drought and fire. Photos courtesy of The Mountain Legacy Project (CC BY-NC 4.0) and partners at Library and Archives Canada / Bibliothèque et Archives Canada
