Athabasca Glacier date marker (location of the glacier in 1925) at the Columbia Icefields, Jasper National Park, Alberta, Canada

SuperStock offers millions of photos, videos, and stock assets to creatives around the world. This image of Glacial Retreat Evident: Historical Marker from 1925 shows the past location of a glacier—evidence of climate change in action. by Darwin Wiggett/All Canada Photos is available for licensing today.