Bhutan continues to face the risk of glacial lake flooding

18 Sep 2014 by Yusuke Taishi, Regional Technical Specialist

A documnetary team on glacial floodsThe film crew seen here during the production of the 'Himalayan Meltdown' documentary. Photo: UNDP Asia/Pacific
In Bhutan, about 5,000 meters above sea level, meltwater trickles down from glaciers to form some of the greatest rivers in the world and provide freshwater and energy to nearly 1.3 billion people throughout the Himalayas. But with the effect of climate change, glaciers are melting too fast, jeopardizing an economy mostly based on hydropower production, but also endangering lives. Water can accumulate in unstable lakes on the glaciers, and when these lakes become too heavy, their natural barriers burst , setting loose a massive volume of water, boulders and mud, causing significant damages in the valleys below. Between 2008 and 2013, the Government – with our support and financial assistance from the Least Developed Countries Fund, the Government of Austria and the World Wildlife Fund – successfully lowered the water level of Lake Thorthormi, a glacial lake that ranked as one of the most dangerous in the country. Bhutanese men and women trekked to an altitude of 4,500 meters above sea level to excavate moraine and rocks in near-freezing water against the strikingly cruel contrast of beautiful ice-capped Himalayan Mountains. It is an image that vividly depicts the unfairness associated with climate change and the fact that these communities who … Read more

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