जलवायु परिवर्तन – Page 15 – आवारा मुसाफिर

As Himalayan glaciers melt, a water crisis looms in South Asia

October 8, 2022896 Views

Warmer air is thinning most of the vast mountain range’s glaciers, known as the Third Pole because they contain so much ice. The melting could have far-reaching consequences for flood risk and for water security for a billion people who rely on meltwater for their survival. Spring came early this year in the high mountains of Gilgit-Baltistan, a remote border region of Pakistan. Record temperatures in March and April hastened melting of the Shisper Glacier, creating a lake that swelled and, on May 7, burst through an ice dam. A torrent of water and debris flooded the valley below, damaging fields and houses, wrecking two power plants, and washing away parts of the main highway and a bridge connecting Pakistan and China. Pakistan’s climate change minister, Sherry Rehman, tweeted vide...

खबरनामाघटनाएंजलवायु परिवर्तनन्यूजीलैंड

Missing snow puts famed New Zealand ski areas on precipice

AWARA MUSAFIR BUREAU

October 7, 20221296 Views

New Zealand’s Tūroa ski area is usually a white wonderland at this time of year, its deep snowpack supporting its famed spring skiing. This season, it’s largely a barren moonscape, with tiny patches of snow poking out between vast fields of jagged volcanic boulders. The ski area was forced to close for the season this week, three weeks earlier than planned. Rain repeatedly washed away the snow, and the ski area’s 50 snowmaking machines proved no match against balmy temperatures. Climate change appears to be a significant factor, after New Zealand experienced its warmest winter on record — for the third year in a row. The ski slopes are almost devoid of snow at the Tūroa ski field at Mt. Ruapehu, New Zealand on Sept. 21, 2022. (AP Photo/Nick Perry) The disastrous snow season co...

अंटार्कटिकाजलवायु परिवर्तन

Seasonal change in Antarctic ice sheet movement observed for first time

AWARA MUSAFIR BUREAU

October 6, 2022227 Views

Some estimates of Antarctica’s total contribution to sea-level rise may be over- or underestimated, after researchers detected a previously unknown source of ice loss variability. The researchers, from the University of Cambridge and Austrian engineering company ENVEO, identified distinct, seasonal movements in the flow of land-based ice draining into George VI Ice Shelf – a floating platform of ice roughly the size of Wales – on the Antarctic Peninsula. Riley Glacier, Palmer Land, Antarctica. Photo: Ian Willis Using imagery from the Copernicus/European Space Agency Sentinel-1 satellites, the researchers found that the glaciers feeding the ice shelf speed up by approximately 15% during the Antarctic summer. This is the first time that such seasonal cycles have been detected on la...

जलवायु परिवर्तनतुवालुफिजी

Amid rising seas, island nations push for legal protections

AWARA MUSAFIR BUREAU

October 1, 2022472 Views

When and if an island nation fully submerges due to rising seas, what happens to the nationalities of its citizens? This and other related questions are being considered by island nations advocating for changes to international law as climate change threatens their existence. “Climate change induced sea level rise is a defining issue for many Pacific Island states and like most climate change issues, Pacific Island states have been at the forefront of challenging international law to develop in a way which is equitable and just,” said Fleur Ramsay, head of litigation and climate lead of the Pasifika Program at the Australia-based Environmental Defenders Office. Eseta Vusamu sits near the water Thursday, Sept. 29, 2022, in the village of Faleasiu on the island of Upolu in Samoa. (...

चिलीजलवायु परिवर्तन

Research center in Chile’s Cape Horn serves as climate change ‘sentinel’

AWARA MUSAFIR BUREAU

September 30, 2022830 Views

Located at the tip of South America, where the Pacific and Atlantic oceans meet, Cape Horn in Chile is the closest land mass to Antarctica and home to a unique ecosystem that scientists say is a natural laboratory to study climate change. Ricardo Rozzi, director of the almost-completed Cape Horn International Center (CHIC), said the area has at least 10 features - including the world's southernmost forest - which make the Cape Horn Biosphere Reserve ideal to monitor plant and animal life on a warming planet. A boat travels along Beagle channel, Cabo de Hornos area, Magallanes and Chilean Antarctic Region, in Puerto Williams town, Chile, September 24, 2022. REUTERS/Ivan Alvarado "in the north are coming south, but what happens to the ones here in the south? Do they vanish? Do they...

जलवायु परिवर्तनस्विट्जरलैंड

Worst melt year on record for Swiss glaciers

AWARA MUSAFIR BUREAU

September 28, 2022476 Views

Swiss glaciers have recorded their worst melt rate since records began more than a century ago, losing 6% of their remaining volume this year or nearly double the previous record of 2003, monitoring body GLAMOS said on Wednesday. The melt was so extreme this year that bare rock that had remained buried for millenia re-emerged at one site while bodies and even a plane lost elsewhere in the Alps decades ago were recovered. Other small glaciers all but vanished. FILE PHOTO: Glaciologist Andreas Linsbauer and assistant Andrea Millhaeusler stand on a border moraine of the Pers Glacier near the Alpine resort of Pontresina, Switzerland July 21, 2022. REUTERS/Arnd Wiegmann "We knew with climate scenarios that this situation would come, at least somewhere in the future," Matthias Huss, he...

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Mangroves have been capturing carbon for 5,000 years

AWARA MUSAFIR BUREAU

September 18, 2022729 Views

Unusual forests on stilts mitigate climate change, Mexican research shows Researchers have identified a new reason to protect mangrove forests: they’ve been quietly keeping carbon out of Earth’s atmosphere for the past 5,000 years. Mangroves thrive in conditions most plants cannot tolerate, like salty coastal waters. Some species have air-conducting, vertical roots that act like snorkels when tides are high, giving the appearance of trees floating on stilts. A UC Riverside and UC San Diego-led research team set out to understand how marine mangroves off the coast of La Paz, Mexico, absorb and release elements like nitrogen and carbon, processes called biogeochemical cycling. UCSD coastal ecologist Matthew Costa entering mangrove forest in Mexico. Photo credit: Ramiro Arcos Agu...

अमेरिकाजलवायु परिवर्तन

100 years after compact, Colorado River nearing crisis point

AWARA MUSAFIR BUREAU

September 12, 2022460 Views

The intensifying crisis facing the Colorado River amounts to what is fundamentally a math problem. The 40 million people who depend on the river to fill up a glass of water at the dinner table or wash their clothes or grow food across millions of acres use significantly more each year than actually flows through the banks of the Colorado. In fact, first sliced up 100 years ago in a document known as the Colorado River Compact, the calculation of who gets what amount of that water may never have been balanced. Fisherman on a boat float on the Colorado River, June 27, 2021, near Burns, Colo. (Hugh Carey/The Colorado Sun via AP) “The framers of the compact — and water leaders since then — have always either known or had access to the information that the allocations they were mak...

खबरनामाघटनाएंजलवायु परिवर्तनस्विट्जरलैंड

Rocky path revealed between Swiss glaciers in extreme melt season

AWARA MUSAFIR BUREAU

September 11, 2022913 Views

A rocky Alpine path between two glaciers in Switzerland is emerging for what the local ski resort says is the first time in at least 2,000 years after the hottest European summer on record. Hikers walk past the newly uncovered Zanfeluron path, as a split of the Sex-Rouge and the Zanfleuron Glacier revealed the path for the first time in 2000 years due to this summer heatwave, at Glacier 3000 in Les Diablerets, Switzerland, September 11, 2022. REUTERS/Denis Balibouse The ski resort of Glacier 3000 in western Switzerland said this year's ice melt was around three times the 10-year average, meaning bare rock can now be seen between the Scex Rouge and the Zanfleuron glaciers at an altitude of 2,800 metres and the pass will be completely exposed by the end of this month. "About 10 yea...

जलवायु परिवर्तन

Four major climate tipping points close to triggering

AWARA MUSAFIR BUREAU

September 9, 2022420 Views

Even if the world somehow manages to limit future warming to the strictest international temperature goal, four Earth-changing climate “tipping points” are still likely to be triggered with a lot more looming as the planet heats more after that, a new study said. An international team of scientists looked at 16 climate tipping points — when a warming side effect is irreversible, self-perpetuating and major — and calculated rough temperature thresholds at which they are triggered. None of them are considered likely at current temperatures, though a few are possible. But with only a few more tenths of a degree of warming from now, at 1.5 degrees Celsius (2.7 degrees Fahrenheit) warming since pre-industrial times, four move into the likely range, according to a study in Thursday’s journal...