जलवायु परिवर्तन – Page 15 – आवारा मुसाफिर

Months after floods, Brazil’s Amazon faces a severe drought

October 22, 2022856 Views

Just months after enduring floods that destroyed crops and submerged entire communities, thousands of families in the Brazilian Amazon are now dealing with severe drought that, at least in some areas, is the worst in decades. The low level of the Amazon River, at the center of the largest drainage system in the world, has put dozens of municipalities under alert. The fast-decreasing river water level is due to lower-than-expected rainfall during August and September, according to Luna Gripp, a geosciences researcher who monitors the western Amazon’s river levels for the Brazilian Geological Survey. A man walks in an area impacted by drought near the Solimões River, in Tefe, Amazonas state, Brazil, Wednesday, Oct. 19, 2022. (AP Photo/Edmar Barros) As most of Amazonas state is not ...

जलवायु परिवर्तन

Future emissions from ‘country of permafrost’ significant

AWARA MUSAFIR BUREAU

October 19, 2022589 Views

Greenhouse gases emitting from Arctic must be factored into global climate targets By the end of this century, permafrost in the rapidly warming Arctic will likely emit as much carbon dioxide and methane into the atmosphere as a large industrial nation, and potentially more than the U.S. has emitted since the start of the industrial revolution. But that’s only one possible future for the vast stores of carbon locked in the formerly perennially frozen but now-thawing ground in the Arctic. Using more than a decade of synthesis science and region-based models, a new study led by Northern Arizona University and the international Permafrost Carbon Network and published in Annual Review of Environment and Resources forecasts cumulative emissions from this “country of permafrost” through 2...

जलवायु परिवर्तनस्वीडन

Sea level rise now menaces even a Viking bastion of uplifted land

AWARA MUSAFIR BUREAU

October 17, 2022984 Views

About 1,000 years ago, a Viking woman named Ingrid built a wharf to load ships at a bay on the Swedish coast and commemorated the site with a looping runic inscription on a grey boulder. Today Ingrid’s harbour, surrounded by birch and pine trees, is high and dry, on land 5 metres (16 feet) above sea level and 20 kms (12 miles) inland from coastal Stockholm, on the Baltic Sea. Land across much of the Nordic region has been rebounding since the end of the Ice Age about 12,000 years ago, as a heavy smothering of ice up to 3 km (1.9 miles) thick melted away. That rise should make the region an unlikely candidate to suffer problems from a global rise in ocean levels as seas warm and glaciers melt - a threat for low-lying nations and coastal cities around the world, from Shanghai to Mi...

जलवायु परिवर्तन

Half of the world’s coral reefs may face unsuitable conditions by 2035

AWARA MUSAFIR BUREAU

October 12, 2022241 Views

Researchers assess the dire consequences of climate change under a business-as-usual scenario There’s more bad news for planet earth if climate change continues unabated. New research published on October 11th in the open access journal PLOS Biology by researchers at the University of Hawaiʻi at Mānoa, United States reveals that, under a worst-case scenario, half of coral reef ecosystems worldwide will permanently face unsuitable conditions in just a dozen years. FILE PHOTO: Reef fish swim above recovering coral colonies on the Great Barrier Reef off the coast of Cairns, Australia October 25, 2019. REUTERS/Lucas Jackson The ability of ecosystems to adapt to changes within their environment largely depends upon the type and impact of their specific environmental stressors. Coral r...

आस्ट्रेलियाजलवायु परिवर्तन

Climate justice: UN rules Australia violated islander rights

AWARA MUSAFIR BUREAU

October 11, 20221008 Views

A landmark climate-change ruling can have large scale impact The United Nations Human Rights Committee has found that the Australian government violated the rights of people living on four islands in the Torres Strait and has ordered it to pay for the harm caused. The committee ruled last week that the country had failed to protect islanders from the effects of climate change, making their claim the first successful one of this kind. The Torres Strait islands off the northern tip of Australia are already feeling the brunt of climate-change damage. Rising sea levels, coastal erosion and flooding have had devastating impacts on the island communities. Bridget Lewis, at the Queensland University of Technology in Brisbane, studies how human-rights law can be applied to environmental ...

जलवायु परिवर्तन

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

AWARA MUSAFIR BUREAU

October 8, 2022923 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, 20221433 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, 2022239 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, 2022503 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, 2022884 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...