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Mount Everest glaciers shrink 28% in 40 years

source: wikipedia

New Delhi: As a result of climate change, the glaciers on Mount Everest, which are the birthplace of major Asian rivers such as the Ganga, Brahmaputra and Indus, have shrunk by 28 per cent in the past 40 years, according to a report.

The report released by Hunan University of Science and Technology, the Chinese Academy of Sciences (CAS), and Mount Qomolangma Snow Leopard Conservation Centre, made comparisons according to measurements taken in the 1970s.

The glacier area in the southern slope of Everest in Nepal has reduced by 26 per cent since 1980s, the report said.

Known as Mount Qomolangma in Tibet, Mt Everest has also been getting warmer for the past 50 years, added the report.

A researcher from the State Key Laboratory of Cryospheric Sciences under the CAS, Kang Shichang, informed that the report was compiled based on information collected by on-site monitoring and long-term remote sensing.

Covering 2,030 square kilometres, the national nature reserve of China’s Mt Qomolangma at present consists of 1,476 glaciers, as reported by the state-run Xinhua news agency.

Glacial lakes have been swelling, and river levels have been rising downstream, said Kang, who has led several teams for glacier inspection.

Kang added that a glacial lake in the Mt Everest nature reserve which earlier in 1990, covered an area of 100 square kilometres, swelled to occupy 114 square kilometres in 2013. This information was gathered via remote sensing data.

Earlier in May, a group of international researchers had warned that the in the– site of many of the world’s tallest peaks including Mount Everest – could reduce their volume by 70-99 per cent by 2100, with dire consequences for farming and hydropower generation downstream.

By 2100, the Hindu Kush –Himalayan (HKH) region—would possibly face a 70-99 per cent reduction in its estimated 5,500 glaciers, a group of international researchers warned in May. This will create disastrous effects in farming and hydropower generation in downstream areas.


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World could see 140mn climate migrants by 2050: Report

World Bank Chief Executive Officer Kristalina Georgieva said the new research provides a wake-up call to countries and development institutions

climate change is happening at a quickened pace and thus leading to melting of huge ice bergs
climate change is happening at a quickened pace and thus leading to melting of huge ice bergs
  • Three regions can witness migration due to climate change
  • The regions also include South Asia
  • It is important to take measures to control climate change

Three densely populated regions of the world, including South Asia, could see internal climate migrants of over 140 million people in the next three decades if climate change impacts continue, a new World Bank Group report finds.

The report, “Groundswell — Preparing for Internal Climate Migration”, released on Monday, finds that unless urgent climate and development action is taken globally and nationally, the three regions — Sub-Saharan Africa, South Asia and Latin America — together could be dealing with tens of millions of internal climate migrants by 2050.

World can witness migration of many due to climate change. VOA
World can witness migration of many due to climate change. VOA

These people will be forced to move from increasingly non-viable areas of their countries due to growing problems like water scarcity, crop failure, sea-level rise and storm surges.

The “climate migrants” would be an addition to the millions of people already moving within their countries for economic, social, political or other reasons, the report warns. The exodus could create a looming humanitarian crisis and will threaten the development process.

Also Read: Climate change driving dramatic rise in sea levels: NASA

However, with concerted actions — including global efforts to cut greenhouse gas emissions and robust development planning at the country level — this scenario could be dramatically reduced by up to 80 per cent or more than 100 million people.

The report is the first and most comprehensive study of its kind to focus on the nexus between slow-onset climate change impacts, internal migration patterns and, development in these three developing regions of the world.

World Bank Chief Executive Officer Kristalina Georgieva said the new research provides a wake-up call to countries and development institutions. “We have a small window now, before the effects of climate change deepen, to prepare the ground for this new reality,” Georgieva said.

It is important to control climate change now.

“Steps cities take to cope with the upward trend of arrivals from rural areas and to improve opportunities for education, training and jobs will pay long-term dividends. It’s also important to help people make good decisions about whether to stay where they are or move to new locations where they are less vulnerable.”

The research team, led by World Bank Lead Environmental Specialist Kanta Kumari Rigaud, include researchers and modellers from CIESIN Columbia University, CUNY Institute of Demographic Research, and the Potsdam Institute for Climate Impact Research.

Also Read: Maharashtra’s climate action plan yielded disappointments

They applied a multi-dimensional modelling approach to estimate the potential scale of internal climate migration across the three regions. They looked at three potential climate change and development scenarios, comparing the most “pessimistic” (high greenhouse gas emissions and unequal development paths), to “climate-friendly” and “more inclusive development” scenarios in which climate and national development action increases in line with the challenge. Across each scenario, they applied demographic, socio-economic and climate impact data at a 14 grid-cell level to model likely shifts in population within countries.

This approach identified major “hotspots” of climate in- and out-migration – areas from which people are expected to move and urban, peri-urban and rural areas to which people will try to move to build new lives and livelihoods. “Without the right planning and support, people migrating from rural areas into cities could be facing new and even more dangerous risks,” the report added. IANS