climate change – Page 5 – आवारा मुसाफिर

खबरनामाघटनाएंजलवायु परिवर्तनस्विट्जरलैंड

Swiss ski spot left snowless, deserted by mild January

February 3, 2024450 Views

The once-popular ski runs of Dent-de-Vaulion in the Swiss Jura Mountains are now deserted as unusually mild weather has driven away winter sport enthusiasts and forced ski resorts to close across the country. Abandoned pole rods of the ski lift sway in the wind. Crusty snow dots stretches of yellowed grass. Lift pylons stand alone in rocky terrain where cheerful crowds once puffed steam in frigid temperatures. A view shows the closed Dent-de-Vaulion ski lift amid lack of snow at altitudes below 1500 m due to high winter temperatures induced by climate change, in Vaulion, Switzerland, February 2, 2024. REUTERS/Denis Balibouse Switzerland, a major ski destination, is warming at about twice the global average rate partly because its mountains trap heat, the United Nations Intergover...

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Glacier melting destroys important climate data archive

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January 28, 2024431 Views

As part of the Ice Memory initiative, PSI researchers, with colleagues from the University of Fribourg and Ca’ Foscari University of Venice as well as the Institute of Polar Sciences of the Italian National Research Council (CNR), analysed ice cores drilled in 2018 and 2020 from the Corbassière glacier at Grand Combin in the canton of Valais. A comparison of the two sets of ice cores published in Nature Geoscience shows: Global warming has made at least this glacier unusable as a climate archive. Reliable information about the past climate and air pollution can no longer be obtained from the Corbassière glacier in the Grand Combin massif, because alpine glacier melting is progressing more rapidly than previously assumed. This sobering conclusion was reached by researchers led by Margit...

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Alpine glaciers to shrink by more than a quarter by 2050, whatever happens

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January 20, 2024371 Views

Even if global warming were to stop completely, the volume of ice in the European Alps would fall by 34% by 2050. If the trend observed over the last 20 years continues at the same rate, however, almost half the volume of ice will be lost as has been demonstrated by scientists from the University of Lausanne (UNIL, Switzerland) in a new international study. By 2050, i.e. in 26 years' time, we will have lost at least 34% of the volume of ice in the European Alps, even if global warming were to stop completely and immediately. This is the prediction of a new computer model developed by scientists from the Faculty of Geosciences and Environment at the University of Lausanne (UNIL), in collaboration with the University of Grenoble, ETHZ and the University of Zurich. In this scenario, devel...

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Scientists reveal how Greenland Ice Sheet has shrunk over past four decades

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January 18, 2024542 Views

The Greenland Ice Sheet lost 5,091 sq km (1930 sq miles) of area between 1985 and 2022, according to a study in the journal Nature published on Wednesday, the first full ice-sheet wide estimate of area loss on that scale. This shrinkage reflected the 1,034 gigatonnes (1.034 trillion kg.) of ice that have been lost as glaciers retreated, shedding ice through "calving" - when ice chunks break off from a glacier - at their terminating ends. FILE PHOTO: The edge of the ice sheet is pictured south of Ilulissat, Greenland, September 17, 2021. REUTERS/Hannibal Hanschke The study is also the first to fully estimate how much ice Greenland has lost due specifically to glacial retreat. It suggests previous estimates of changes to the Greenland Ice Sheet's mass balance - how much snow and ic...

खबरनामाघटनाएंजलवायु परिवर्तन

2023 was world’s hottest year on record

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January 9, 2024427 Views

Scientists knew it would make history — but not by this much Last year was the planet's hottest on record by a substantial margin and likely the world's warmest in the last 100,000 years, the European Union's Copernicus Climate Change Service (C3S) said on Tuesday. Scientists had widely expected the milestone, after climate records were repeatedly broken. Since June, every month has been the world's hottest on record compared with the corresponding month in previous years. "This has been a very exceptional year, climate-wise... in a league of its own, even when compared to other very warm years," C3S Director Carlo Buontempo said. FILE PHOTO: A man walks on the cracked ground of the Baells reservoir as drinking water supplies have plunged to their lowest level since 1990 due t...

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Heat of climate change in a sacred forest and valley

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December 7, 2023672 Views

Majestic cedar trees towered over dozens of Lebanese Christians gathered outside a small mid-19th century chapel hidden in a mountain forest to celebrate the Feast of the Transfiguration, the miracle where Jesus Christ, on a mountaintop, shined with light before his disciples. The sunset’s yellow light coming through the cedar branches bathed the leader of Lebanon’s Maronite Church, Patriarch Beshara al-Rai, as he stood at a wooden podium and delivered a sermon. Then the gathering sang hymns in Arabic and the Aramaic language. For Lebanon’s Christians, the cedars are sacred, these tough evergreen trees that survive the mountain’s harsh snowy winters. They point out with pride that Lebanon’s cedars are mentioned 103 times in the Bible. The trees are a symbol of Lebanon, pictured at t...

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2023 to be hottest year on record

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December 6, 2023461 Views

November is the sixth straight month to set a heat record The last half year has truly been shocking, scientists are running out of adjectives to describe this European Union scientists said on Wednesday that 2023 would be the warmest year on record, as global mean temperature for the first 11 months of the year hit the highest level on record, 1.46 degrees Celsius (2.63 degrees Fahrenheit) above the 1850-1900 average. For the sixth month in a row, Earth set a new monthly record for heat, and also added the hottest autumn to the litany of record-breaking heat this year, the European climate agency calculated. And with only one month left, 2023 is on the way to smashing the record for hottest year. FILE PHOTO: Manuel Flores walks on a dry area that shows the drop in the level...

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Peru lost more than half of its glacier surface in just over half a century

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November 26, 2023726 Views

Peru has lost more than half of its glacier surface in the last six decades, and 175 glaciers became extinct due to climate change between 2016 and 2020, Peruvian scientists from the state agency that studies glaciers said Wednesday. “In 58 years, 56.22% of the glacial coverage recorded in 1962 has been lost,” said Mayra Mejía, an official with Peru’s National Institute of Research of Mountain Glaciers and Ecosystems, or Inaigem. The factor that causes the greatest impact is the increase in the average global temperature, causing an accelerated retreat of glaciers, especially those in tropical areas, Jesús Gómez, director of glacier research at Inaigem, told The Associated Press. The South American country has 1,050 square kilometers (405 square miles) of glacial coverage lef...

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World’s largest iceberg breaks free, heads toward Southern Ocean

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November 26, 2023744 Views

The world's largest iceberg is on the move for the first time in more than three decades, scientists said on Friday. At almost 4,000 square km (1,500 square miles), the Antarctic iceberg called A23a is roughly three times the size of New York City. Since calving off West Antarctica's Filchner-Ronne Ice Shelf in 1986, the iceberg — which once hosted a Soviet research station — has largely been stranded after its base became stuck on the floor of the Weddell Sea. Not anymore. Recent satellite images reveal that the berg, weighing nearly a trillion metric tonnes, is now drifting quickly past the northern tip of the Antarctic Peninsula, aided by strong winds and currents. A satellite imagery of the world's largest iceberg, named A23a, seen in Antarctica, November 15, 2023. Courtes...

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Climate on track to warm by nearly 3C without aggressive actions

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November 20, 2023574 Views

UN report says world is racing to well past warming limit as carbon emissions rise Countries' current emissions pledges to limit climate change would still put the world on track to warm by nearly 3 degrees Celsius this century, according to a United Nations analysis released Monday. The annual Emissions Gap report, which assesses countries' promises to tackle climate change compared with what is needed, finds the world faces between 2.5C (4.5F) and 2.9C (5.2F) of warming above preindustrial levels if governments do not boost climate action. This year Earth got a taste of what’s to come, said the report, which sets the table for international climate talks later this month. At 3C of warming, scientists predict the world could pass several catastrophic points of no return, from...