climate change – Page 14 – आवारा मुसाफिर

Weather whiplash: Summer lurches from drought to flood

August 30, 2022238 Views

Parts of northern Texas, mired in a drought labeled as extreme and exceptional, are flooding under torrential rain. In a drought. Sound familiar? It should. The Dallas region is just the latest drought-suffering-but-flooded locale during a summer of extreme weather whiplash, likely goosed by human-caused climate change, scientists say. Parts of the world are lurching from drought to deluge. The St. Louis area and 88% of Kentucky early in July were considered abnormally dry and then the skies opened up, the rain poured in biblical proportions, inch after inch, and deadly flooding devastated communities. The same thing happened in Yellowstone in June. Earlier this month, Death Valley, in a severe drought, got a near record amount of rainfall in one day, causing floods, and is still in...

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‘Zombie ice’ from Greenland will raise sea level 10 inches

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August 29, 2022162 Views

Zombie ice from the massive Greenland ice sheet will eventually raise global sea level by at least 10 inches (27 centimeters) on its own, according to a study released Monday. Zombie or doomed ice is ice that is still attached to thicker areas of ice, but is no longer getting fed by those larger glaciers. That’s because the parent glaciers are getting less replenishing snow. Meanwhile the doomed ice is melting from climate change, said study co-author William Colgan, a glaciologist at the Geological Survey of Denmark and Greenland. “It’s dead ice. It’s just going to melt and disappear from the ice sheet,” Colgan said in an interview. “This ice has been consigned to the ocean, regardless of what climate (emissions) scenario we take now.” FILE PHOTO: A boat navigates at night next ...

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Dangerous heat predicted to hit 3 times more often in future

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August 27, 2022165 Views

What’s considered officially “dangerous heat” in coming decades will likely hit much of the world at least three times more often as climate change worsens, according to a new study. In much of Earth’s wealthy mid-latitudes, spiking temperatures and humidity that feel like 103 degrees (39.4 degrees Celsius) or higher -- now an occasional summer shock — statistically should happen 20 to 50 times a year by mid-century, said a study Monday in the journal Communications Earth & Environment. By 2100, that brutal heat index may linger for most of the summer for places like the U.S. Southeast, the study’s author said. FILE PHOTO: People rest in the shade of a tree on a hot summer afternoon in Lucknow in the central Indian state of Uttar Pradesh, April 28, 2022. (AP Photo/Rajesh Kuma...

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Current warming is recorded as the strongest of the last 7,000 years

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August 26, 2022947 Views

Observation emerges from the analysis of annual growth rings from Yamal’s subfossil trees The north of Western Siberia is recording the warmest summers of the last 7,000 years. While for several millennia the temperature of the region was following a general cooling, in the 19th century there has been an abrupt change with rapidly rising temperature that has reached its highest value in the recent decades. These findings were published in Nature Communications. Over 40 years, dendrochronologists have collected more than 5,000 samples of subfossil trees in Yamal. Photo credit: Vladimir Kukarskih Thanks to multiple field expeditions aimed at collecting subfossil wood performed over the last 40 years, dendrochronologists of the Institute of Plant and Animal Ecology, Ural Branch of t...

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Hot, dry summer forces early start to Champagne harvest in France

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August 25, 2022920 Views

Champagne grape pickers have had to start the harvest earlier this year, as climate change forces the makers of the French sparkling wine to rethink how they make the coveted bubbly. High temperatures and the worst drought on record have caused massive wildfires and led to restrictions on water usage across France. But they also boosted grape maturity. Champagne grape pickers work at the Clos des Goisses vineyard owned by Champagne Philipponnat during the traditional Champagne harvest in Mareuil-sur-Ay, France, August 24, 2022. REUTERS/Pascal Rossignol An August harvest, rather than in early September last year, used to be a once in a lifetime experience in Champagne in the past, said Charles Philipponnat, president of the family-owned Philipponnat Champagne winery that produces ...

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Europe facing its worst drought in 500 years – study

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August 24, 2022310 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...

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

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August 23, 2022262 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....

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Already shrunk by half, Swiss glaciers melting faster

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August 22, 2022236 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 ...

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African migratory birds threatened by hot, dry weather

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August 20, 2022553 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...

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Collapse of ancient Mayan capital linked to drought

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August 19, 2022983 Views

UAlbany professor's research sheds light on link between climate change, societal instability Prolonged drought likely helped to fuel civil conflict and the eventual political collapse of Mayapan, the ancient capital city of the Maya on the Yucatán Peninsula, suggests a new study in Nature Communications that was published with the help of a University at Albany archeologist. Mayapan served as the capital to some 20,000 Maya people in the 13th through mid-15th centuries but collapsed and was abandoned after a rival political faction, the Xiu, massacred the powerful Cocom family. Extensive historical records date this collapse to sometime between 1441 and 1461. But new evidence shows drought in the century prior may have played a larger role in the city’s demise than was previousl...