Shulou(Shulou.com)11/24 Report--

CTOnews.com, January 7, according to Xinhua News Agency, a research report published in the American journal Science on the 5th shows that climate change poses a greater threat to global glaciers than scientists had previously expected. according to the current rising trend of global average temperature, nearly 70% of the world's land glaciers will melt completely by the end of this century. Even if the "ideal" goal of warming only 1.5 degrees Celsius is achieved, nearly half of the land glaciers will disappear.

Researchers from many universities such as Pexels in the United States and Europe observed the changes of a total of 215000 land glaciers around the world over several decades, and calculated the trend of glaciers under different increases in global average temperatures with the help of computer simulation technology. The study found that 49% of land glaciers would disappear, accounting for about 26% by weight, if the ideal goal of the Paris Agreement reached at the 2015 United Nations Climate change Conference was achieved, keeping global warming within 1.5 degrees Celsius. If calculated according to the "worst-case scenario" set by the study, that is, a warming of 4 degrees Celsius, the disappearance of glaciers would expand to 83 per cent.

CTOnews.com learned that one of the consequences of melting glaciers is faster sea-level rise. The researchers estimate that with global warming of 1.5 degrees Celsius, 2.7 degrees Celsius and 4 degrees Celsius, sea levels will rise by 9 cm, 11.5 cm and 15 cm, respectively.

Melting glaciers also means that freshwater supplies to about 2 billion people are affected, especially when summer rainfall is low.

"We are going to lose a lot of glaciers anyway," said David Lance, a glaciologist at Carnegie Mellon University in the United States and lead author of the study. "but we have the ability to control the number of glaciers lost and make a difference."

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