Tibetan Plateau glaciers shrinking

About 90 per cent of glaciers in the Third Pole region are shrinking, accelerated by black carbon being transferred from South Asia to the Tibetan Plateau, a top scientist has warned.

Change between 1968 and 2007

The Third Pole region, which is centred on the Tibetan Plateau and concerns the interests of the surrounding countries and regions, covers more than 5 million square kilometers and has an average altitude of more than 4,000 meters.

The area has the largest number of glaciers outside the polar regions and exerts a direct influence on the social and economic development of some of the most densely populated regions on earth, including China and India.

The glaciers are at the headwaters of many prominent Asian rivers.

Influenced by global warming, its alpine glaciers have seen drastic changes in recent years, such as thinning and shrinkage, which pose potential geological hazards to people both on and around the plateau.

Like Antarctica and the Arctic, the Third Pole is drawing increased attention from the international academic community, but the results of former international studies in this area are inconsistent, said Yao Tandong, director of the Chinese Academy of Sciences' Institute of Tibetan Plateau Research.

The scientist, a member of the Chinese People's Political Consultative Conference National Committee, said some people believe the glaciers will retreat and finally disappear by 2030, while others argue they will remain unchanged.

There are even people who argue that the glaciers have even moved forward, he said.

Researchers at Yao's institute say they can now draw a more comprehensive picture of the region, by showing data on the glaciers' status over the past 30 years. An investigation using topographic maps and satellite images revealed the retreat of 82 glaciers, area reduction by 7,090 glaciers and the mass-balance change of 15 glaciers.

"Systematic differences in glacier status are apparent from region to region, with the most pronounced shrinkage in the Himalayas, the southeastern part of the region.

Some of the glaciers there are very likely to disappear by 2030," Yao said. More

 

Himalayan Sherpas lament climate change devastation

GATI, Nepal: Climate change is altering the face of the Himalayas, devastating farming communities and making Mount Everest increasingly treacherous to climb, some of the world’s top mountaineers have warned.

Nepalese mountaineer Apa Sherpa (L), who has scaled Everest a record-breaking 21 times, and Dawa Steven Sherpa (R) speak during an interview with AFP in Sindhpalchowk, some 100 kilometres north of Kathmandu on February 23, 2012, during a break on the 120-day Climate Smart Celebrity Trek across the Nepalese Himalayas. Climate change is altering the face of the Himalayas, devastating farming communities and making Mount Everest increasingly treacherous to climb, some of the world’s top mountaineers have warned. – AFP Photo

Apa Sherpa, the Nepali climber who has conquered Mount Everest a record 21 times, said he was disturbed by the lack of snow on the world’s highest peak, caused by rising temperatures.

“In 1989 when I first climbed Everest there was a lot of snow and ice but now most of it has just become bare rock. That, as a result, is causing more rockfalls which is a danger to the climbers,” he told AFP.

“Also, climbing is becoming more difficult because when you are on a mountain you can wear crampons but it’s very dangerous and very slippery to walk on bare rock with crampons.”Speaking after completing the first third of a gruelling 1,700-kilometre (1,100-mile) trek across the Himalayas, Apa Sherpa would not rule out the possibility of Everest being unclimbable in the coming years.

“What will happen in the future I cannot say but this much I can say from my own experiences — it has changed a lot,” he said an an interview with AFP in the village of Gati, 16 kilometres from Nepal’s border with Tibet.

The 51-year-old father-of-three, dubbed “Super Sherpa”, began his working life as a farmer but turned to the tourism industry and mountaineering after he lost all his possessions when a glacial lake burst in 1985.

He is on a 120-day walk dubbed the Climate Smart Celebrity Trek with another of the world’s top climbers, Nepali Dawa Steven Sherpa, with the pair expected to reach the finish on May 13.

The expedition, the first official hike along the length of Nepal’s Great Himalayan Trail since it opened last year, will take in some of the world’s most rugged landscapes and see the duo ascending beyond 6,000 metres (19,600 feet).

“I want to understand the impact of climate change on other people but also I’d like tourism to play a roll in changing their lives as it has changed mine,” said Apa Sherpa.

Research published by the Kathmandu-based International Centre for Integrated Mountain Development (ICIMOD) last year showed Nepal’s glaciers had shrunk by 21 per cent over 30 years. More