A third of Himalayan ice cap doomed, finds report

https://www.theguardian.com/environment/2019/feb/04/a-third-of-himalayan-ice-cap-doomed-finds-shocking-report

Damian Carrington Environment editor
Mon 4 Feb 2019 06.45 EST

At least a third of the huge ice fields in Asia’s towering mountain chain are doomed to melt due to climate change, according to a landmark report, with serious consequences for almost 2 billion people.

Even if carbon emissions are dramatically and rapidly cut and succeed in limiting global warming to 1.5C, 36% of the glaciers along in the Hindu Kush and Himalaya range will have gone by 2100. If emissions are not cut, the loss soars to two-thirds, the report found.

The glaciers are a critical water store for the 250 million people who live in the Hindu Kush-Himalaya (HKH) region, and 1.65 billion people rely on the great rivers that flow from the peaks into India, Pakistan, China and other nations.

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The melting glaciers will increase river flows through to 2050 to 2060, he said, pushing up the risk of high-altitude lakes bursting their banks and engulfing communities. But from the 2060s, river flows will go into decline. The Indus and central Asian rivers will be most affected. “Those areas will be hard hit,” said Wester.

Lower flows will cut the power from the hydrodams that generate much of the region’s electricity. But the most serious impact will be on farmers in the foothills and downstream. They rely on predictable water supplies to grow the crops that feed the nations in the mountains’ shadows.

But the changes to spring melting already appear to be causing the pre-monsoon river flow to fall just when farmers are planting their crops. Worse, said Wester, the monsoon is also becoming more erratic and prone to extreme downpours. “One-in-100 year floods are starting to happen every 50 years,” he said.

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The new report highlights how vulnerable many mountain people are, with one-third living on less than $1.90 a day and far away from help if climate disaster strikes.
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Political tensions between neighbouring nations such as India and Pakistan could add to the difficulties. “There are rocky times ahead for the region. Because many of the disasters and sudden changes will play out across country borders, conflict among the region’s countries could easily flare up,” said Eklabya Sharma, the deputy director general of Icimod.

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