जलवायु परिवर्तन – Page 7 – आवारा मुसाफिर

Greenland’s massive ice sheet is melting — here’s how to save it

October 21, 2023799 Views

The ice sheet could experience runaway melting if the world overshoots climate targets, but even then quick action could stabilize it Greenland’s massive ice sheet, which is thawing because of human-induced climate change, could be saved from complete meltdown even if global temperatures soar past key international targets, a study suggests. But rescuing the ice in these conditions would require huge future cuts in atmospheric greenhouse-gas levels — and would not prevent the ice sheet from melting enough to cause up to several metres of sea-level rise. Melt water courses across the Greenland ice sheet, the largest ice mass in the Northern Hemisphere. Credit: Education Images/Universal Images Group via Getty Using climate modelling, the research concludes that Greenland’s melti...

जलवायु परिवर्तनब्राजील

Amazon River falls to lowest in over a century amid Brazil drought

AWARA MUSAFIR BUREAU

October 17, 2023743 Views

The Amazon River fell to its lowest level in over a century on Monday at the heart of the Brazilian rainforest as a record drought upends the lives of hundreds of thousands of people and damages the jungle ecosystem. Rapidly drying tributaries to the mighty Amazon have left boats stranded, cutting off food and water supplies to remote villages, while high water temperatures are suspected of killing more than 100 endangered river dolphins. Boats and houseboats are seen stranded in a dry area of the Igarape do Taruma stream which flows into the Rio Negro river, as the water level at a major river port in Brazil's Amazon rainforest hit its lowest point in at least 121 years, in Manaus, Brazil, October 16. REUTERS/Bruno Kelly The port of Manaus, the region's most populous city, at th...

जलवायु परिवर्तन

Whales, dolphins in American waters are losing food and habitat to climate change

AWARA MUSAFIR BUREAU

October 8, 2023729 Views

Whales, dolphins and seals living in U.S. waters face major threats from warming ocean temperatures, rising sea levels and decreasing sea ice volumes associated with climate change, according to a first-of-its-kind assessment. Researchers with the National Oceanic and Atmospheric Administration examined more than 100 stocks of American marine mammal species and found more than 70% of those stocks are vulnerable to threats, such as loss of habitat and food, due to the consequences of warming waters. The impacts also include loss of dissolved oxygen and changes to ocean chemistry. FILE PHOTO: A harbor seal surfaces in Casco Bay on July 30, 2020, off Portland, Maine. (AP Photo/Robert F. Bukaty) The scientists found large whales such as humpbacks and North Atlantic right whales were ...

जलवायु परिवर्तनस्विट्जरलैंड

Swiss glaciers have lost 10% of their volume in the past 2 years

AWARA MUSAFIR BUREAU

October 1, 2023739 Views

A Swiss Academy of Sciences panel is reporting a dramatic acceleration of glacier melt in the Alpine country, which has lost 10% of its ice volume in just two years after high summer heat and low snow volumes in winter. Switzerland — home to the most glaciers of any country in Europe — has seen 4% of its total glacier volume disappear in 2023, the second-biggest decline in a single year on top of a 6% drop in 2022, the biggest thaw since measurements began, the academy’s commission for cryosphere observation said. FILE PHOTO: Chunks of ice float in a lake in front of Rhone Glacier near Goms, Switzerland, June 15, 2023. (AP Photo/Matthias Schrader) Experts at the GLAMOS glacier monitoring center have been on the lookout for a possible extreme melt this year amid early warning sig...

जलवायु परिवर्तन

Locals fear disaster as North Macedonia’s Lake Prespa recedes

AWARA MUSAFIR BUREAU

September 13, 2023857 Views

Fisherman Vancho Vasilevski's boat frequently runs aground when he sails on Lake Prespa, one of Europe's oldest lakes and home to more than 2,000 species of fish, birds, mammals and plants, in a sign of how much water the lake is losing. "In the last two, three months the water has dropped 36 centimetres and in last days probably another two or three centimetres," said Vasilevski, who is in his late 60s. FILE PHOTO: A rowing boat rest at last year's water line at Prespa lake in the village of Stenje, North Macedonia September 6, 2023. REUTERS/Ognen Teofilovski "It will go down more. There is no rain, no winter, no snow, no rivers. Only one river is coming into the lake... This is a disaster, a natural disaster." The decline has continued over decades - the water at Lake Prespa...

खबरनामाघटनाएंजलवायु परिवर्तन

Summer 2023 was hottest on record, scientists say

AWARA MUSAFIR BUREAU

September 7, 2023724 Views

The summer of 2023 was the hottest on record, according to data from the European Union Climate Change Service released on Wednesday. The three-month period from June through August surpassed previous records by a large margin, with an average temperature of 16.8 degrees Celsius (62.2F) - 0.66C above average. Last month was the also the hottest August on record globally, the third straight month in a row to set such a record following the hottest ever June and July, the EU said on Wednesday. FILE PHOTO: Lifeguard Mohamed stands near a swimming pool while the sun sets over Dubai, United Arab Emirates, August 12, 2023. REUTERS/Amr Alfiky August is estimated to have been around 1.5 degrees Celsius hotter than the pre-industrial average for the 1850-1900 period. Pursuing efforts t...

जलवायु परिवर्तनस्विट्जरलैंड

Recent heat wave threatens severe glacier melt again in Switzerland

AWARA MUSAFIR BUREAU

September 1, 2023758 Views

A top glacier watcher has warned that a warm early summer combined with a heat wave last week may have caused severe glacier melt in Switzerland, threatening to make 2023 its second-worst year for ice loss after a record thaw last year. Matthias Huss of the GLAMOS glacier monitoring center said full data won’t be in until late September and a precipitous drop in temperatures and high-altitude snowfall in recent days could help stem any more damage. But early signs based on readings from five sites and modeling results across Switzerland suggest considerable damage may already be done. “We can definitely say that we had very high melting in Switzerland and in Europe in general because the temperatures, they were extremely high for a long time — a more than one week heat wave,”...

अंटार्कटिकाजलवायु परिवर्तन

Loss of Antarctic ice killed thousands of emperor penguin

AWARA MUSAFIR BUREAU

August 25, 2023917 Views

The loss of ice in one region of Antarctica last year likely resulted in none of the emperor penguin chicks surviving in four colonies, researchers reported Thursday. Emperor penguins hatch their eggs and raise their chicks on the ice that forms around the continent each Antarctic winter and melts in the summer months. Researchers used satellite imagery to look at breeding colonies in a region near Antarctica’s Bellingshausen Sea. The images showed no ice was left there in December during the Southern Hemisphere’s summer, as had occurred in 2021. FILE PHOTO: Penguins walk on the shore of Bahia Almirantazgo in Antarctica on Jan.27, 2015. (AP Photo/Natacha Pisarenko) Researchers said it is likely that no chicks survived in four of the five breeding colonies they examined. Pengui...

जलवायु परिवर्तन

Changing climate pushes migrating birds from parched Tunisian wetlands

AWARA MUSAFIR BUREAU

August 16, 2023919 Views

Tunisia's lakes and coastal lagoons are parched and overheating, endangering a delicate ecosystem and disrupting the vast flocks of migrating birds that use the wetlands as a way station between Africa and Europe. Ariana lagoon just outside the capital Tunis has been left a cracked expanse of dry mud, its small islands where birds usually nest now surrounded by sand and bereft of life after months of drought and a ferocious heatwave. A view shows part of the dried-out Ariana lagoon, in Ariana, Tunisia August 11, 2023. REUTERS/Jihed Abidellaoui Even the nearby Sijoumi lagoon, where water has always been more reliable, is half empty, its flocks of flamingos casting a pale pink smear across a patch of wetland as Tunis suburbs rise on the hill behind. "This year you can feel there...

अंटार्कटिकाजलवायु परिवर्तन

Even frozen Antarctica is being walloped by climate extremes

AWARA MUSAFIR BUREAU

August 8, 2023854 Views

Even in Antarctica — one of the most remote and desolate places on Earth — scientists say they are finding shattered temperature records and an increase in the size and number of wacky weather events. The southernmost continent is not isolated from the extreme weather associated with human-caused climate change, according to a new paper in Frontiers in Environmental Science that tries to make a coherent picture of a place that has been a climate change oddball. Its western end and especially its peninsula have seen dramatic ice sheet melt that threatens massive sea level rises over the next few centuries, while the eastern side has at times gained ice. One western glacier is melting so fast that scientists have nicknamed it the Doomsday Glacier and there’s an international effort tryin...