जलवायु परिवर्तन – Page 17 – आवारा मुसाफिर

Europe facing its worst drought in 500 years – study

August 24, 2022321 Views

Europe is facing its worst drought in at least 500 years, with two-thirds of the continent in a state of alert or warning, reducing inland shipping, electricity production and the yields of certain crops, a European Union agency said on Tuesday. The August report of the European Drought Observatory (EDO), overseen by the European Commission, said 47% of Europe is under warning conditions, with clear deficit of soil moisture, and 17% in a state of alert, in which vegetation is affected. A woman takes pictures in the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. (AP Photo/Antonio Calanni) "The severe drought affecting many regions of Europe since the beginning of the year has been further expanding and worsening as of early August," the report said, adding tha...

चीनजलवायु परिवर्तन

Its largest lake is so dry, China digs deep to water crops

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August 23, 2022270 Views

With China’s biggest freshwater lake reduced to just 25% of its usual size by a severe drought, work crews are digging trenches to keep water flowing to one of the country’s key rice-growing regions. The dramatic decline of Poyang Lake in the landlocked southeastern province of Jiangxi had otherwise cut off irrigation channels to nearby farmlands. The crews, using excavators to dig trenches, only work after dark because of the extreme daytime heat, the official Xinhua News Agency reported. A severe heat wave is wreaking havoc across much of southern China. High temperatures have sparked mountain fires that have forced the evacuation of 1,500 people in the southwest, and factories have been ordered to cut production as hydroelectric plants reduce their output amid drought conditions....

जलवायु परिवर्तन

Already shrunk by half, Swiss glaciers melting faster

AWARA MUSAFIR BUREAU

August 22, 2022248 Views

Switzerland’s 1,400 glaciers have lost more than half their total volume since the early 1930s, a new study has found, and researchers say the ice retreat is accelerating at a time of growing concerns about climate change. ETH Zurich, a respected federal polytechnic university, and the Swiss Federal Institute on Forest, Snow and Landscape Research on Monday announced the findings from a first-ever reconstruction of ice loss in Switzerland in the 20th century, based in part on an analysis of changes to the topography of glaciers since 1931. A person stands in front of the Bernina mountain group with the Pers and Morteratsch glaciers in Pontresina, Switzerland, Wednesday, August 10, 2022. (Gian Ehrenzeller/Keystone via AP) The researchers estimated that ice volumes on the glaciers ...

अफ्रीकाजलवायु परिवर्तन

African migratory birds threatened by hot, dry weather

AWARA MUSAFIR BUREAU

August 20, 2022576 Views

Africa’s migratory birds are threatened by changing weather patterns in the center and east of the continent that have depleted natural water systems and caused a devastating drought. Hotter and drier conditions due to climate change make it difficult for traveling species who are losing their water sources and breeding grounds, with many now endangered or forced to alter their migration patterns entirely by settling in cooler northern areas. Roughly 10% of Africa’s more than 2,000 bird species, including dozens of migratory birds, are threatened, with 28 species — such as the Madagascar fish eagle, the Taita falcon and hooded vultures — classed as “critically endangered.” Over one-third of them are especially vulnerable to climate change and extreme weather, an analysis by environm...

अंटार्कटिकाजलवायु परिवर्तन

Antarctica’s ice shelves could be melting faster than we thought

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August 16, 2022227 Views

How coastal ocean currents increase Antarctic ice shelf melt A new model developed by Caltech and JPL researchers suggests that Antarctica's ice shelves may be melting at an accelerated rate, which could eventually contribute to more rapid sea level rise. The model accounts for an often-overlooked narrow ocean current along the Antarctic coast and simulates how rapidly flowing freshwater, melted from the ice shelves, can trap dense warm ocean water at the base of the ice, causing it to warm and melt even more. The study was conducted in the laboratory of Andy Thompson, professor of environmental science and engineering, and appears in the journal Science Advances on August 12. A research vessel in Antarctica on June 3, 2017. Photo: Ben Adkison Ice shelves are outcroppings of t...

इटलीजलवायु परिवर्तन

Italy’s Lake Garda shrinks to near-historic low amid drought

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August 14, 2022224 Views

Italy’s worst drought in decades has reduced Lake Garda, the country’s largest lake, to near its lowest level ever recorded, exposing swaths of previously underwater rocks and warming the water to temperatures that approach the average in the Caribbean Sea. Tourists flocking to the popular northern lake Friday for the start of Italy’s key summer long weekend found a vastly different landscape than in past years. An expansive stretch of bleached rock extended far from the normal shoreline, ringing the southern Sirmione Peninsula with a yellow halo between the green hues of the water and the trees on the shore. People sunbath on the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. (AP Photo/Antonio Calanni) “We came last year, we liked it, and we came back this y...

अफ्रीकाजलवायु परिवर्तन

African wildlife parks face climate, infrastructure threats

AWARA MUSAFIR BUREAU

August 14, 20221057 Views

Africa’s national parks, home to thousands of wildlife species such as lions, elephants and buffaloes, are increasingly threatened by below-average rainfall and new infrastructure projects. A prolonged drought in much of the continent’s east, exacerbated by climate change, and large-scale developments, including oil drilling and livestock grazing, are hampering conservation efforts in protected areas, several environmental experts say. FILE PHOTO: A pair of hippopotamuses cool off in the Nile river near the waterfalls in Murchison Falls National Park, northwest Uganda, on Feb. 21, 2020. (AP Photo) The at-risk parks stretch all the way from Kenya in the east — home to Tsavo and Nairobi national parks — south to the Mkomazi and Serengeti parks in Tanzania, the Quirimbas and Gorongo...

अमेरिकाजलवायु परिवर्तन

Rapid warming in the Gulf of Maine reverses 900 years of cooling

AWARA MUSAFIR BUREAU

August 9, 2022545 Views

Rapid 20th century warming in the Gulf of Maine has reversed long-term cooling that occurred there during the previous 900 years, according to new research that combines an examination of shells from long-lived ocean quahogs and climate model simulations. The warming is “likely due to increased atmospheric greenhouse gas concentrations and changes in western North Atlantic circulation,” according to the paper, “Rapid 20th century warming reverses 900-year cooling in the Gulf of Maine,” published in Communications Earth & Environment, an open access journal from Nature Portfolio. An Arctica islandica shell perches on the railing of the ESS Pursuit during a research cruise in the Mid-Atlantic Bight, south of the Gulf of Maine. Credit: Image credit: Nina Whitney/ © Woods Hole Ocean...

जलवायु परिवर्तन

A lose-lose game: animals are under threat as the climate gets warmer and more variable

AWARA MUSAFIR BUREAU

August 8, 2022272 Views

How has climate change affected your life? Maybe torrential rains have flooded part of your town, or your city has had to contend with longer heat waves every year. Maybe you kept your attention on the news for days at a time to find out if a wildfire would change its direction and come toward you, or if a hurricane would be strong enough that you should evacuate. Climate change will continue to affect the world around us in complex and tragic ways. Increasing temperatures are causing rising ocean levels, shifting weather patterns, and threatening the survival of animals and plants. But along with increasing temperatures, the climate is also becoming more variable, and more extreme. The brown anole (Anolis sagrei) is one of the species studied by the Logan Lab and could provide valu...

अमेरिकाजलवायु परिवर्तन

13 of the 19 glaciers in Alaska show substantial retreat

AWARA MUSAFIR BUREAU

August 5, 2022428 Views

New study calculates loss of glacier edges in Kenai Fjords National Park As glaciers worldwide retreat due to climate change, managers of national parks need to know what’s on the horizon to prepare for the future. A new study from the University of Washington and the National Park Service measures 38 years of change for glaciers in Kenai Fjords National Park, a stunning jewel about two hours south of Anchorage. The study, published Aug. 5 in The Journal of Glaciology, finds that 13 of the 19 glaciers show substantial retreat, four are relatively stable, and two have advanced. It also finds trends in which glacier types are disappearing fastest. The nearly 670,000-acre park hosts various glaciers: some terminate in the ocean, others in lakes or on land. Bear Glacier, shown here i...