Even if the planet only warms up by 1.5°C—which is what the signatories to the Paris Climate Agreement are aiming for—one-third of all Asian glaciers will have melted by 2100, according to results of a study by Dutch researchers, published in Nature recently.
The melting of the glaciers constitutes a serious problem, since millions of people are partially dependent on the melt water.
The researchers used results from 110 different climate models for four different climate change scenarios. The results are alarming. If the planet warms up by just 1.5°C, some 36 per cent of all the ice in Asia will have melted by the end of the century. At present, the region still contains so much ice that it’s also known as the ‘Third Pole’. There are some 5,000 gigatons of ice in Asia, enough to fill about 2 billion Olympic-size swimming pools.
The consequences of an increase of 1.5°C will be all too visible, particularly in the glaciers in the Himalayas and Tibet. More than half of these glaciers will have melted by 2100. And that’s not all that will happen, the researchers predict.
“At the moment, it does not look like we’ll be able to keep global warming down to 1.5°C,” says Utrecht University’s Philip Kraaijenbrink, a physical geographer and the study report’s primary author. “Unfortunately, it seems more likely that between 49 and 65 per cent of all ice in Asia will have melted by 2100, which will place a significant strain on the availability of water in the region.”
The article first appeared on Climate Change Post and is a digest of a scientific paper by Kraaijenbrink P.D.A., Bierkens M.F.P., Lutz A.F. and Immerzeel W.W., Impact of a global temperature rise of 1.5 degrees Celsius on Asia’s glaciers, Nature, 2017.