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Global Warming: Over 70 per cent of Everest glacier’s volume may be lost by 2100

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New Delhi: Over 70 per cent of the glacier volume in the Mount Everest region in the Himalayas could be lost in 85 years if greenhouse gas emissions continue to rise, a new paper suggests. It also indicates more flood risk in the future in the Kosi river downstream from Nepal to India.

The paper, “Modelling glacier change in the Everest region, Nepal Himalaya”, published on Wednesday in The Cryosphere, a journal of the European Geosciences Union (EGU), said the glacier volume could be reduced between 70 and 99 percent by 2100.

It is a first approximation to how the Himalayan glaciers will react to increasing temperatures in the region. The results depend on how much greenhouse gas emissions continue to rise and on how this will affect temperature, snowfall and rainfall in the area.

A team of researchers from Nepal, France and the Netherlands have found the Everest glaciers could be very sensitive to future warming and that sustained ice loss through the 21st century is likely.

If greenhouse gas emissions continue to rise, the glaciers could experience dramatic change in the decades to come, said the study.

“The signal of future glacier change in the region is clear: continued and possibly accelerated mass loss from glaciers is likely given the projected increase in temperatures,” said Joseph Shea, a glacier hydrologist at the International Centre for Integrated Mountain Development (ICIMOD) in Kathmandu.

“Our results indicate that these glaciers may be highly sensitive to changes in temperature and that increases in precipitation are not enough to offset the increased melt,” Shea said.

Increased temperatures will not only increase the rates of snow and ice melt but can also result in a change of precipitation from snow to rain at critical elevations, where glaciers are concentrated. Together, these act to reduce glacier growth and increase the area exposed to melt, said the leader of the study.

The researchers studied glaciers in the Dudh Kosi basin in the Nepal Himalayas, which are home to some of the world’s highest mountain peaks, including Mt Everest, and to over 400 sq km of glacier area.

“Apart from the significance of the region, glaciers in the Dudh Kosi basin contribute meltwater to the Kosi river, and glacier changes will affect river flows downstream,” Shea said.

Changes in glacier volume can impact the availability of water, with consequences for agriculture and hydropower generation.

While increased glacier melt initially increases water flows, ongoing retreat leads to reduced meltwater from the glaciers during the warmer months, with greatest impact for the local populations before the monsoon when rainfall is scarce, said the paper.

Glacier retreat can also result in the formation and growth of lakes dammed by glacial debris. Avalanches and earthquakes can breach the dams, causing catastrophic floods that can result in river flows 100 times greater than normal in the Kosi basin.

The Kosi river is known as the “sorrow of Bihar” as it has caused widespread damage in the past due to flooding and frequent change in its course.

To find out how glaciers in the region will evolve in the future, the researchers started by using field observations and data from local weather stations to calibrate and test a model of glacier change over the past 50 years.

“To examine the sensitivity of modelled glaciers to future climate change, we applied eight temperature and precipitation scenarios to the historical temperature and precipitation data and tracked how glacier areas and volumes responded,” said study co-author Walter Immerzeel of Utrecht University in the Netherlands.

“Our estimates need to be taken very cautiously, as considerable uncertainties remain,” said Patrick Wagnon, a glaciologist at the L’Institut de Recherche pour le Developpement in Grenoble in France.

The paper stresses that “the signal of future glacier change in the region is clear and compelling” and that decreases in ice thickness and extent are expected for “even the most conservative climate change scenario”.

-IANS

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What Difference Between Chinese Domination and American Domination?

Chinese government has always been dominant over it's people

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Who is more dominant, Chinese government or US government?. Pixabay

By N.S. Venkataraman

Chinese government has not left anybody in doubt, about it’s ambitious target of dominating the world at any cost. Chinese government has been suppressing  freedom of speech in China, taking away the rights of citizens of Hong Kong in authoritarian manner and aggressively occupying the territory of neighbours such as Tibet and part of Indian territory, which it occupied after 1962 Indo Chinese war. China is now claiming Indian province Arunachal Pradesh as it’s own and aggressively claiming territorial right in South China Sea and Senkaku island. Chinese government says that Taiwan is part of it’s territory and objects to any recognition given to Taiwan by any other country.

Further, China is trying to enforce it’s domination over small and weak  nearby  countries  such as Pakistan, Nepal, Bangladesh, Sri Lanka and others, by extending loans, which  these countries cannot afford to repay in the foreseeable future.

Viewing China’s methods and targets, one does not find much of difference between today’s Chinese government and Hitler’s Germany. Several countries in the world are  gradually realizing that checking China’s ambition is as necessary, as checking Hitler’s ambition  that caused World War II.

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Chinese government has been suppressing freedom of speech in China. Pixabay

However, the supporters of China claim that US government too should be accused of trying to dominate the world and it has sent troops to several countries such as Vietnam, Iraq, Afghanistan and others to enforce it’s domination. There is an element of  truth in this, as American government seem to think that it has the duty to police the world.

In any case, on careful analysis of the scenario and judiciously comparing the domination desire of China and USA, one cannot but see a subtle difference between both these countries.

While China believes in ruthless elimination of opponents both inside and outside China (just like the way Hitler did) and wants to occupy territories of other countries by coercion or force , US does not indulge in such acts of suppression of human rights or occupying territory of other countries.

US has not concealed it’s desire that freedom of speech and democratic procedures should prevail in all regions in the world. On many occasions , US has fought against totalitarian regimes, religious extremists and terrorist groups and has paid a high price by losing American lives.

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USA desires to dominate the world. Pixabay

USA may have the ambition to dominate the world and ensure it’s authority as super power, but it has no ambition of territorial expansions that China has.

All said and done, if the world were to choose between USA and China, it would inevitably come to the conclusion that world domination by USA is a lesser evil than the world domination by China.

Unlike China, the citizens of USA have the right to criticise the decisions of the government, launch protests against human rights violation, if any and exercise their franchise once in four years to change the party in power, if it would act against the wishes of the people. By such process, the conscience of USA largely remain in tact and US government is vulnerable to the pressure of public opinion, both in USA  and other parts of the world.

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In China, the citizens don’t have the right to criticise the decisions of the government. Pixabay

Also Read: McDonald’s Reveals Plan to Open More Drive-Thru Restaurants in UK

On the other hand, China has totalitarian regime and no citizen can survive in China if he would criticise the Chinese President or question the decision of the Chinese government. To this extent, it is dictatorial regime in China, which can be termed as uncivilized form of governance.

The fact is that USA has been remaining as super  power in the world for several decades now and  the world has not  become worse due to the dominating power of USA. Of course, there have been criticism against US government by some section of world opinion but  most of such critics belong to religious extremist groups  and motivated  leftist (communist) forces , whose economic  and administrative policies  have totally failed to deliver the goods.

Achieving super power status by China   and establishing it’s authority in large parts of the world with least consideration for value systems and sentiments of people, is the worst thing that can happen to the world civilization.

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Special Drive on India-Nepal Border in Bihar to Instantly Clear Pending IGST Refunds of Exporters

The special drive to clear refunds on the spot is aimed at disposing all refund cases which are pending due to various errors

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The department's Patna unit will organize a 5-day IGST Refund Mela at all land customs stations (LCS) starting September 3. Pixabay

Central custom officials would kick off a special drive on India-Nepal border in Bihar to instantly clear pending IGST refunds of exporters.

The department’s Patna unit will organize a 5-day IGST Refund Mela at all land customs stations (LCS) starting September 3.

The special drive to clear refunds on the spot is aimed at disposing all refund cases which are pending due to various errors such as invoice details and bank particulars filed with the department.

The customs authorities have already sent more than 500 letters and emails to exporters explaining them the errors which led to withholding of their refunds and how they can get them back following a simple process.

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Central custom officials would kick off a special drive on India-Nepal border in Bihar to instantly clear pending IGST refunds of exporters. Pixabay

Commissioner of Customs, Patna, Ranjit Kumar said that government is committed to ease of doing business and the IGST refund is automatically done if the data regarding details of invoices and banks are filed correctly in the system.

He, however, said that due to errors related to invoice and bank details, some of the IGST refund claims are not sanctioned.

Besides making exporters aware about errors and need to avoid them, the Customs Department would clear the pending refunds following submission of required details in prescribed format.

The Commissioner said that he will inaugurate an IGST Refund Mela in Raxaul on Tuesday.

Also Read- Sedentary Lifestyle for 20 Years Associated with Two Times Risk of Premature Death

Office of the Commissioner, Customs, Uttar Pradesh and Uttarakhand would also organize IGST Refund Week for rectification of errors and updation of export accounts from September 3.

In this regard, the authorities have informed exporters, custom house brokers, shipping lines and other members of the trade. (IANS)

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Roopkund Bones Study Reveals Mediterranean Migrants in Himalayas

Mediterranean migrants in the Himalayas: Roopkund bones study

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The study involving 28 researchers from institutions in India, the US and Europe revealed that the skeletons belonged to three genetically distinct groups. Pixabay

A study by an international team of scientists has revealed that ancient DNA from mysterious skeletons found in and around Roopkund Lake show there were Mediterranean migrants in Himalayas.

The study involving 28 researchers from institutions in India, the US and Europe revealed that the skeletons belonged to three genetically distinct groups.

The study, published in popular science journal ‘Nature Communications’, covered 38 skeletons found in Roopkund Lake and once thought to have died during a single catastrophic event. However, researchers found that they died in multiple periods separated by at least 1,000 years.

Genome-wide ancient DNA reveals that 23 of the individuals had ancestry that falls within the range of variation of present-day South Asians. A further 14 had ancestry typical of the eastern Mediterranean while one individual was found with Southeast Asian-related ancestry.

According to Hyderabad-based Centre for Cellular and Molecular Biology (CCMB), which was part of the study, it was the first ancient DNA ever reported from India.

Nestled deep in the Himalayan mountains at 5,029 metres above sea level, Roopkund Lake is colloquially referred to as “Skeleton Lake” due to the remains of several hundred ancient humans scattered around its shores.

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Nestled deep in the Himalayan mountains at 5,029 metres above sea level, Roopkund Lake is colloquially referred to as “Skeleton Lake”. Pixabay

“Little was known about the origin of these skeletons, as they have never been subjected to systematic anthropological or archaeological scrutiny, in part due to the disturbed nature of the site, which is frequently affected by rockslides, and which is often visited by local pilgrims and hikers who have manipulated the skeletons and removed many of the artifacts,” says the study.

“There have been multiple proposals to explain the origins of these skeletons. Local folklore describes a pilgrimage to the nearby shrine of the mountain goddess, Nanda Devi, undertaken by a king and queen and their many attendants, who “due to their inappropriate, celebratory behaviour” were struck down by the wrath of Nanda Devi. It has also been suggested that these are the remains of an army or group of merchants who were caught in a storm. Finally, it has been suggested that they were the victims of an epidemic.”

The researchers analyzed the remains using a series of bioarcheological analyses, including ancient DNA, stable isotope dietary reconstruction, radiocarbon dating, and osteological analysis.

They obtained genome-wide data from 38 individuals by extracting DNA from powder drilled from long bones, producing next-generation sequencing libraries, and enriching them for approximately 1.2 million single nucleotide polymorphisms (SNPs) from across the genome.

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According to Hyderabad-based Centre for Cellular and Molecular Biology (CCMB), which was part of the study, it was the first ancient DNA ever reported from India. Pixabay

A total of 76 skeletal samples (72 long bones and four teeth) were sampled at the Anthropological Survey of India, Kolkata. Skeletal sampling was performed in dedicated ancient DNA facilities at CCMB in Hyderabad.

A subset of samples were further processed at Harvard Medical School, Boston.

Also Read: Marvel Studios Presents Ms. Marvel First Muslim Superhero

“We first became aware of the presence of multiple distinct groups at Roopkund after sequencing the mitochondrial DNA of 72 skeletons. While many of the individuals possessed genetic information typical of present-day Indian populations, we also identified a large number of individuals with genetic makeup that would be more typical of populations from West Eurasia (a term used in the study to refer to the cluster of ancestry types common in Europe, the Near East, and Iran)” says Kumarasamy Thangaraj, co-senior author and chief scientist at CCMB.

Dr Kumarasamy and then CCMB director Dr Lalji Singh, who is no more, had initiated the work of sampling the skeletons at ancient DNA lab more than a decade ago. (IANS)