2023-12-13 19:19:40
If he global warming doesn’t stop Three quarters of Himalayan glaciers will melt within the next 80 years at the latest.thus putting in serious risk not only the survival of hundreds of millions of people but also to the highest peaks in the worldaccording to a recent study published in the specialized magazine Nature Geoscience.
According to the authors of the study, During the last three decades there was a sharp decrease in both the maximum air temperature and the rainfall recorded in the glacialized areas of the Himalayas.in clear response to global warming that continues to advance by leaps and bounds.
“He cooling counterintuitively is caused by a higher sensible heat exchange and the associated increase in katabatic wind of glaciers, which draws cold air downward from higher elevations,” the scientists explained.
“If he heating continues, mountain temperatures will rise by five degrees Celsius and this would lead to loss of two thirds of glaciers by the year 2100”they added.
On the other hand, the study indicates that the katabatic winds stronger too reduced the elevation of the convergence of local windsthus reducing the precipitation in glacial areas and negatively affecting the mass balance of the glacierswhich may have greatly helped partially preserve melting glaciers and could help protect the periglacial environment.
“Himalayan glaciers have been steadily losing masswith a marked and worrying acceleration in the last five decadeseven in the iconic Monte Everestwhat is one of the most affected by the advance of climate change”, indicated the scientists.
“This challenges both our understanding of the changes underway, as well as our modeling skills to anticipate future changesalthough, unfortunately, It is still unknown how glaciers modulate the local climate. Today we have to be more attentive than ever to try to prevent the Himalayas from losing all their ice,” they concluded.
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