Tui De Roy / Glacial tongue of Dugdale and Murray Glaciers descending the Admiralty Mountains into Robertson Bay, Victoria Land, Antarctica

Ashley Cooper / Moraine from the rapidly receding Victoria Glacier above Lake Louise in the Canadian Rocky Mountains, Canada. August 2012.

Michel Roggo / Aerial view of Dugdale Glacier, Pennell Coast, Ross Sea, North Victoria Land, Antarctica. February 2017. . Photographed for the Freshwater Project.

Michel Roggo / Aerial view of Dugdale Glacier, Pennell Coast, Ross Sea, North Victoria Land, Antarctica. February 2017. Photographed for the Freshwater Project.

Michel Roggo / Aerial view of Dugdale Glacier, Pennell Coast, Ross Sea, North Victoria Land, Antarctica. February 2017. Photographed for the Freshwater Project.

Michel Roggo / Dugdale Glacier, Pennell Coast, Ross Sea, North Victoria Land, Antarctica. February 2017. Photographed for the Freshwater Project.

Michel Roggo / Aerial view of Dugdale Glacier, with meltwater on it. Pennell Coast, Ross Sea, North Victoria Land, Antarctica. February 2017. Photographed for the Freshwater Project.

Colin Monteath/ Hedgehog House / Commonwealth Glacier, Lower Taylor Valley, Dry Valleys, Victoria Land, Antarctica

Colin Monteath/ Hedgehog House / Mount Herschel, Admiralty Range, Victoria Land, Antarctica

Colin Monteath / Ice climber on steep ice in Fox Glacier crevasse near Victoria Falls, Westland National Park, South Island, New Zealand

Colin Monteath / Ice climber on steep ice in Fox Glacier crevasse near Victoria Falls, Westland National Park, South Island, New Zealand

Colin Monteath / Ice climber on steep ice in Fox Glacier crevasse near Victoria Falls, Westland National Park, South Island, New Zealand

Colin Monteath / Ice climber on steep ice in Fox Glacier crevasse near Victoria Falls, Westland National Park, South Island, New Zealand

Tim Fitzharris / Alpenglow, Lake Louise and Victoria Glacier, Banff National Park, Alberta, Canada

Martha Holmes / Priestly Glacier, Victoria Land, Antarctica. Heavily crevassed

Norbert Wu / Aerial view of windswept ice formations at the base of a glacier in the McMurdo dry valleys, Victoria Land, Antarctica

Colin Monteath / Ice climber on steep ice in Fox Glacier crevasse near Victoria Falls, Westland National Park, South Island, New Zealand

Colin Monteath / Ice climber on steep ice in Fox Glacier crevasse near Victoria Falls, Westland National Park, South Island, New Zealand

Michel Roggo / Dugdale Glacier with meltwater draining from the Admiralty Mountains into Robertson Bay, North Victoria Land, Antarctica. Aerial shot from helicopter, February 2017. Photographed for The Freshwater Pr...