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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 14ºC 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.
Sólheimajökull Glacier icecap and lagoon in South Iceland
Perito Moreno glacier ice in Patagonia, Argentina Los Glaciers National Park near El Calafate. Bule ice South America mountains patagonian glacier on a sunny day with clouds. Glacier serac falling in lake
Houses of Parliament in Cape Town, South Africa. Vintage photo etching circa 19th century.
Many icebergs floating on the surface of alpine Tasman Lake in Tasman valley Mt Cook national park
Panoramic View of icebergs, mountains and glaciers, Patagonia, Argentina
A view on Perito Moreno Glacier in Argentina
Vintage photograph of Unter den Linden, a boulevard in the central Mitte district of Berlin, the capital of Germany, Victorian 19th Century
Perito Moreno Glacier close El Calafate in Patagonia, Argentina
Pesetas, old coins and bills from Spain
A stamp printed in the United States in 1869 shows a steam locomotive moving.
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.
College Fjord in Prince William Sound, Alaska, USA.
Blue Glacier on Black Rock Lake Southern Patagonian Ice Field Torres del Paine National Park Patagonia Chile
Vintage photograph of the Queen Bess Rock at Bedruthan Steps, North Cornwall, 19th Century
A wide shot of ruth glaciers covered in snow
Vernon, Connecticut, USA - December 12, 2007: Postage stamp depicts the ChAteau de Cheverny. The stamp was issued in 1954. The ChAteau de Cheverny is located in the Loire Valley in France and is a major tourist attraction. It was built between 1624 and 1630 by Philippe Hurault.
Old Indonesian currency with a picture of farmers in rice fields.
Different views Glaciar Perito Moreno, glacier, iceberg, ice, lake, sky - Patagonia, Argentina
Rare Old Five Rupee notes combined on the table, India money on the rotating table. Old Indian Currency notes on a rotating table, Indian Currency on the table
High angle landscape of the Himalayas and Darjeeling, India during the british era. Vintage photo printed in halftone circa late 19th century.
Perito Moreno glacier view, Patagonia landscape, Argentina. Patagonian landmark
Vintage photograph of Pontoon bridge crossing the Rhine at Koblenz (Coblentz) on the Rhine, Germany, 19th Century
Melting glacier seen from Oldevatnet Lake near Olden, off Nordfjord, Norway.
Perito Moreno Glacier, on Lake Argentino, which together with other nearby glaciers, represent the third largest frozen freshwater reserve in the world. Santa Cruz Province, Patagonia, Argentina.
The ancient glacier makes its way down the mountain and into the Prince William h Sound.  The mountain range has been scarred from years of pressure and ice.
Eiffel tower, Paris, France. Added paper texture.
Old One Rupee notes combined on the table, India money on the rotating table. Old Indian Currency notes on a rotating table, Indian Currency on the table
The British military camp of the Second Boer War in Ladysmith, South Africa. Vintage photo etching circa 19th century.
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