Glaciers in the Hindu Kush Himalaya are melting at unprecedented rates and could lose up to 75% of their volume in a century due to global warming. That could cause both dangerous flooding and water shortages for the people who live in the mountainous region, according to a new report.
“We’re losing the glaciers, and we’re losing them in 100 years’ time,” said the lead author of the report. At 1.5 degrees Celsius or 2C of warming above preindustrial temperatures, glaciers across the entire region will lose 30% to 50% of their volume by 2100. At 3C of warming, glaciers in the Himalaya will lose up to 75% of their ice, the report said.
The report found water flows in the region’s 12 river basins, including the Ganges, Indus, and Mekong, are likely to peak around mid-century. This will affect the more than 1.6 billion people who depend on this supply.
近期的一份研究報告指出,全球暖化導致興都庫什喜馬拉雅山地區的冰川正以空前的速度融化消失,在一個世紀內可能損失高達75%。這個現象可能使喜馬拉雅山區的居民面臨具威脅性的洪災及缺水危機。
報告主要作者表示:「我們正在失去冰川,我們將在100 年後失去它們。」報告中說,如果未來溫度比工業化前高出攝氏1.5 度或2 度,2100年時,全區冰川將損失30%至50%;如果變暖3 度,喜馬拉雅山的冰川則會損失高達75%。
研究發現,此區冰川融化會使恆河、印度河、湄公河等12條河流流域的水流量在本世紀中葉達到高峰。這會對仰賴這些河流維生的16 億人造成影響。