global warming – Page 5 – आवारा मुसाफिर

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

October 17, 2023701 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...

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

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October 8, 2023709 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 ...

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

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October 1, 2023703 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...

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Summer 2023 was hottest on record, scientists say

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September 7, 2023714 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...

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Recent heat wave threatens severe glacier melt again in Switzerland

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September 1, 2023742 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,”...

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Loss of Antarctic ice killed thousands of emperor penguin

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August 25, 2023894 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...

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Even frozen Antarctica is being walloped by climate extremes

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August 8, 2023834 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...

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World’s biggest permafrost crater in Russia’s Far East thaws as planet warms

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July 22, 2023899 Views

Stunning drone footage has revealed details of the Batagaika crater, a one kilometre long gash in Russia's Far East that forms the world's biggest permafrost crater. In the video two explorers clamber across uneven terrain at the base of the depression, marked by irregular surfaces and small hummocks, which began to form after the surrounding forest was cleared in the 1960s and the permafrost underground began to melt, causing the land to sink. A view of the Batagaika crater, as permafrost thaws causing a megaslump in the eroding landscape, in Russia's Sakha Republic in this still image from video taken July 11 or 12, 2023. Reuters TV via REUTERS "We locals call it 'the cave-in,'" local resident and crater explorer Erel Struchkov told Reuters as he stood on the crater's rim. "It ...

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World’s hottest day ever recorded — twice in two days

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July 6, 2023763 Views

Earth keeps breaking temperature records due to global warming On Monday, the global average temperature was the highest it’s ever been. It was even hotter on Tuesday. June was hottest June on record globally Global temperatures have smashed through records this week, underscoring the dangers of ever-increasing greenhouse gas emissions generated from burning fossil fuels. The average worldwide temperature reached 17C (63F) on Monday, just above the previous record of 16.9C in August 2016, according to data from the National Centers for Environmental Prediction. The threshold only lasted a day. On Tuesday, July 4, 2023, the average temperature hit 17.2C. This past June was also the hottest June globally on record in terms of sea and air temperatures, according to a statement by ...

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Warming causes more extreme rain, not snow, over mountains

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June 29, 2023673 Views

A warming world is transforming some major snowfalls into extreme rain over mountains instead, somehow worsening both dangerous flooding like the type that devastated Pakistan last year as well as long-term water shortages, a new study found. Using rain and snow measurements since 1950 and computer simulations for future climate, scientists calculated that for every degree Fahrenheit the world warms, extreme rainfall at higher elevation increases by 8.3% (15% for every degree Celsius), according to a study in Wednesday’s journal Nature. Heavy rain in mountains causes a lot more problems than big snow, including flooding, landslides and erosion, scientists said. And the rain isn’t conveniently stored away like snowpack that can recharge reservoirs in spring and summer. FILE PHOTO:...