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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.

Glacial lake in the Pacific Northwest

Westminster Bridge, and Big Ben at sunset in spring.

Lumangwe Falls on the Kalungwishi River in northern Zambia

Hidden Falls, Grand Teton National Park, Wyoming, USA

Waterfall running through rocks at Ben Lawers in the highlands of Scotland in black and white with long exposure.

Downtown Manhattan, Freedom Tower

Dovedale, Peak District

Blue Glacier on Black Rock Lake Southern Patagonian Ice Field Torres del Paine National Park Patagonia Chile

1937 S US Lincoln cent minted in San Francisco

Grand Canyon Clouds 8

Photo of a landscape at the Grand Canyon in Arizona, United States of America.

$ENG: Grande Cascade Waterfall in Gavarnie mountain cirque (Pyrenees National Park, Midi-Pyrénées, France) \nESP: Gran Cascada del circo de Gavarnie (Gavarnie, Midi-Pyrénées, Francia, Pirineos)\nFR: Grande Cascade du cirque de Gavarnie (Parc National des Pyrénées, Midi-Pyrénées, France) \nCAT: Gran Cascada del circ de Gavarnie (Gavarnie, Midi-Pyrénées, França)$

Pesetas, old coins and bills from Spain

Patagonia, Argentina - January 7, 2018: View of the Perito Moreno Glacier. Copy space for text.

View of the side of a modern glass skyscraper from below located in the center of downtown Houston, Texas.

Skyscraper

Digital dollar Error glitch

World One Trade Center

Closeup of an Argentine Peso currency on a silver background

Old Indonesian currency with a picture of farmers in rice fields.

Vintage engraving of a view of The Rocky Mountains, 19th Century

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

Big Ben of London city. See portfolio for more images of London city.

Black and white landscape in autumn season

Big Ben and Westminster abbey, London, EnglandLONDON, UK - SEPTEMBER 23, 2015: Tourists on Westminster Bridge at the Houses of Parliament aka Westminster Palace

Scenic view of the Grand Canyon, in the Grand Canyon National Park, in the State of Arizona, USA

Grand Canyon National Park, Arizona, USA

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