tagged w/ Glacier Lakes
For the last two climbing seasons, Dawa Sherpa has missed scaling the summit of Mt Everest. But the climate ambassador for the World Wildlife Fund (WWF) and two-time Everest summiteer may not be relishing the thought of bearing witness once more to the impact of rising temperatures on the world’s highest peak.
Indeed, he says that even making one’s way just up to Base Camp, which lies at an altitude of 5,380 metres, can already give one the dismal view of the devastation climate change is wreaking.
"Snow cover in the mountains is decreasing, crevasses are opening up in the glaciers," says Dawa. "Avalanches (have been) occurring frequently (in) the past two years."
In 2010, one of his Sherpa staff lost his life to an avalanche. Dawa also recalls Appa Sherpa, the 20-time Everest summiteer who has been climbing Everest since 1990, as saying last year that he has seen small puddles of water even at an altitude of 8,000 metres.
Snow and glaciers cover about 10 percent of the area of Nepal, where about 10 percent of the stream flows can be traced back to the glaciers.
Melting glaciers and receding snowlines, however, are just among the many manifestations of climate change in this tiny Himalayan nation.
Ministry of Forests and Soil Conservation Joint Secretary Dr Jagadish Chandra Baral shares with IPS a striking example of how climate change has been affecting Nepal’s horticulture sector.
"The apple-growing belt in the Mustang district is gradually shifting to higher altitudes," says Baral, who writes frequently on climate change, because warming temperatures have resulted in their fruits getting worms. "People there claim that while they could easily produce healthy apples as low as Lete (2,480 metres) until a few years ago, the apples now tend to catch worms even in higher altitudes like Larjung (2,550 metres), Kobang (2,640 metres) and Marpha (2,670 metres)."
Mustang is located near the Tibet border. Recently, a village there was dubbed as Nepal’s first ‘climate refugee village’.
Efforts are now underway to resettle the entire village of Dhe to a lower area of Mustang. Among other things, the sources of water there are drying up, while the flora in and around the area have been vanishing fast, leaving the villagers’ cattle herds and other grazing animals with little to eat.
According to the English-language national daily ‘Republica’, which broke the news about Dhe in June, "(a) total of 150 people (23 households) …are being shifted due to the adverse impact of climate change on the livelihoods of the poor in the village".
"Dhe village has been facing an acute shortage of water for irrigation over the last six to seven years," it added. "The irrigated land over the period has also been reduced to less than 50 percent and animal husbandry (particularly goat keeping) has declined by 40 to 45 percent.
The irony is that Nepal itself is said to contribute next to nothing to climate change, which is traced by experts to greenhouse gas emissions of countries around the world.
China and India, which sandwich Nepal, in fact happen to be two of the world’s fastest industrialising and highest carbon dioxide-emitting countries.
Earlier in 2010, though, those who have expressed doubt that climate change is real had a field day when the United Nation’s Intergovernmental Panel on Climate Change (IPCC) announced it had made a mistake in saying the Himalayan glaciers may be gone by 2035. The climate-change sceptics took this as yet another piece of evidence that much of what had been said of the global phenomenon had been nothing but hysterical hype.
But IPCC has clarified that while it had made an error on the date, it did not make a mistake about the melting away of the Himalayan glaciers.
Madan Shrestha of the Nepal Academy of Science and Technology also remarks, "We have ample scientific evidence to prove that climate change is causing the Himalayan glaciers to retreat."
Shrestha has been studying Nepal’s glaciers since 1974, when he was a part of the Glaciological Expedition to Nepal (a joint effort of Japan and Nepal).
He says that he was shocked beyond belief to see a picture taken in October 2009 of the Yala glacier (5,100 metres to 5,700 metres) in Lamtang area in central Nepal. Comments Shrestha: "The photograph was evidence of the fact that the glacier’s mass had decreased and there was a significant terminus retreat."
A comparative analysis of photographs taken during different time periods clearly reveals that the fate of other glaciers such as AX010 (4,950 metres to 5,390 metres) glacier in Shorong mountain in East Nepal is no different, he adds.For the last two climbing seasons, Dawa Sherpa has missed scaling the summit of Mt... more
For two decades, Funuru Sherpa has watched the lake above his native village of Dengboche in Nepal's Himalayas grow, as the glacier that feeds it melts.
The 29-year-old, who runs a busy Internet cafe for tourists visiting the Everest region, remembers his grandfather telling him that 50 years ago the lake did not exist.
"Before, it was all ice," he told AFP in the eastern Himalayan town of Lukla, in the shadow of Mount Everest.
"This is proof that the glaciers in the high Himalayas are melting. And that must be because the temperatures have gone up."
Scientists say the Imja Glacier above Dengboche is retreating by about 70 metres (230 feet) a year, and the melting ice has formed a huge lake that could devastate villages downstream if it bursts.
The trend is not new. Nepal's International Centre for Integrated Mountain Development (ICIMOD), which has studied the Himalayas for three decades, says many of the country's glaciers have been retreating for centuries.
But ICIMOD glaciologist Samjwal Ratna Bajracharya said this was now happening at an alarming speed, with temperatures in the Himalayas rising at a much faster rate than the global average.
"Our studies of the past 30 years show that the temperatures (in the Himalayas) are rising up to eight times faster than the global average. Melting is taking place higher and faster," Bajracharya told AFP.
"The melting of glaciers and formation of glacier lakes is a key indicator of the temperature rise. And lately, we have seen massive ice melt."
Nepal has more than 2,300 glacial lakes and experts say at least 20 are in danger of bursting.
At almost one square kilometre (0.38 square miles), the Imja lake is the country's second biggest, estimated to hold 36 million cubic metres (47 million cubic yards) of water, and is considered the biggest flood threat.
It is a subject close to the heart of Nepalese mountaineer Apa Sherpa, who has climbed Everest a record 19 times.
In 1985 Apa Sherpa lost his house and farm when the Dig Tsho glacial lake burst, causing a giant wave to flow down the mountain.
Seven people were killed by the flood, which swept away bridges and houses and destroyed a new hydropower station.
"For me, climate change is personal," said the climber, who dedicated his latest Everest expedition to raising awareness of the impact of climate change on mountain communities.
"There's probably no one who can relate to this issue in the way that I can."
Information about how many people would be affected by a glacial lake bursting remains limited, but experts say the floodwaters could reach as far as Nepal's southern planes and beyond.
Environment secretary Uday Raj Sharma said last week the bursting of the Imja lake would be like a "Nepalese tsunami," comparing it with the 2004 Indian Ocean disaster in which around 220,000 people died.
The government has asked international donors for help in tackling the hazardous glacial lakes, which will be discussed at regional talks here next week aimed at highlighting the dangers climate change poses to the Himalayas.
But experts say there are no easy solutions.For two decades, Funuru Sherpa has watched the lake above his native village of... more