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Nearly half of the glaciers on the World Heritage List of the United Nations Educational, Scientific and Cultural Organization (UNESCO) disappear if the current level of gas emissions causing global warming is maintainedwarns a study by the International Union for the Conservation of Nature (IUCN).
According to the report of IUCN, United Nations Environmental Advisor, 21 of the 46 glaciers inscribed on the UNESCO list will have disappeared by 2100. Even in a more optimistic scenario, in which greenhouse gas emissions have significantly decreased, the study considers that 8 of these glaciers have no hello.
Among the World Heritage sites in danger are Los Glaciares National Park. The National Park of Monte Perdido, in the Pyrenees (Spain and France) and other popular natural destinations of the Alps, Rocky Mountains (United States and Canada), Himalaya (Nepal), between other.
"The loss of these iconic glaciers would be a tragedy and could have serious consequences on the availability of aquatic resources, the rise in sea level and other weather conditions."Peter Shadie, director of the IUCN World Heritage Program, said in a statement.
Jean-Baptiste Bosson, author of the study, said that, to preserve them, it was urgent to significantly reduce emissions of greenhouse gases. "This is the only way to avoid irreversible damage that can have serious natural, social, economic and migratory consequences.", he added.
The report also carries out the first inventory of glaciers and calculates the existence of 19,000 of these ice mbades in 46 reserves included in the list of UNESCO.
Glaciers cover about 10% of the Earth's crust (30% in the recent geological epoch) and play a key role in the hydrological cycle as large reserves in which more than 60% of the world's freshwater Lake s accumulates. Earth
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