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Glaciers are sensitive indicators of global warming. The photograph shows the Moreno Glacier where it enters Lago Argentino, Patagonia. The water in the lake is around 14ÂșC in summer, melting the ice face from beneath, leaving huge masses of ice hanging. As the photograph shows, when the overhang weight is larger than the shear force strength of the ice wall, gigantic ice block crash into Lago Argentino, eroding the glacial front wall. Moreno Glacier if one of the few glaciers in the world where the erosion at the front is still slower than the replenishment from behind. Global warming is steadily warming the surface waters of Lago Argentino leading to a more rapid erosion at the glacial front. In this sense the Moreno Glacier is a benchmark for global warming since once the Moreno Glacier starts to retreat, global warming impact will be global.
Mountain lake in summer. Arabel lake, South Tien Shan, Issyk-Kul region
A beautiful nature landscape at the Banff national park
Glacier National Park, Montana - Sunset, Lakeshore
Turquoise water and Peaks of Moraine Lake in a cloudy summer afternoon from the footpath by the lake.
Early summer morning at Mount Thompson and Bow Lake in the Canadian Rockies of Banff NP, Canada
Canadian Rocky Mountains
Snow capped mountain range with bright green pine trees in foreground on a sunny day
Glenorchy Lagoon with clear Dart River and Mount Bonpland on the opposite bank. Gelnorchy is a town in New Zealand
Salmon Glacier the 7th largest glacier in North America, located in the town of Hyder, Alaska but situated within British Columbia.
Patagonia, Argentina - January 7, 2018: View of the Perito Moreno Glacier. Copy space for text.
Two bull moose in the Snowy Range of Wyoming's Medicine Bow Mountains.
Hurricane Ridge, Olympic National Park, Washington
Families enjoying an afternoon at Cascade Pond, in Banff National Park, Alberta, Canada.
Perito Moreno Glacier close El Calafate in Patagonia, Argentina
Panoramic views of Teton Range in Wyoming, USA.
Rockies, forests and Kootenay River along the Banff Windermer HWY Kootenay National Park British Columbia Canada
Smreczynski Pond in Tatra Mountains, Poland
Beautiful flowers bloom in front of the lake with a gorgeous mountain background at Glacier National Park in Montana
Yellow aspens on a distant conifer forest with the Colorado Continental Divide beyond.
Wilderness Landscape in Alaska, USA
Jackson Lake and Tetons with calm water reflections in the morning. This is Grand Teton National Park in Wyoming, in  western USA.
Perito Moreno glacier view, Patagonia landscape, Argentina. Patagonian landmark
Sunrise over Cuernos del Paine , Torres del Paine - Patagonia, Chile
Pastoruri glacier is located in the Andes mountain range, in Northern Peru. Due to global warming and climate change is retreating and melting quickly. Environment problem
Northwestern Montana's Livingston Range.
The smooth water of Lake Vermillon reflects the clouds. Canada. Indian summer in the Rocky Mountains. Yellow autumn grass on the shores of mountain lake Vermillon.
Lake Louise seascape, Canada
A panoramic view of a bench looking out over mountains and water at Vermilion Lakes in Banff in the morning.
Vermillion Lakes in Banff National Park
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