University of Calgary researchers find climate change impacts Canadian Rockies mountaineering, altering historic climbs and routes.

University of Calgary researchers have found that climate change is altering mountaineering conditions in the Canadian Rockies through a century's worth of entries from a hut's log. This change has led to erased historic climbs, increased danger in other routes, and altered the face of Canadian mountaineering. Classic routes have changed, and mountaineers have expressed sadness and concern about the impact of climate change on the region.