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Climate Change

Tibetan glaciers face multiple threats from South Asia air pollution

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The Tibetan Plateau is the largest and highest such elevation in the world, and is a critical water resource for almost two billion people in Asia, but the land mass, known as the “Asian water tower”, is under a growing climate threat.

Scientists say the primary culprit – an air pollutant known as black carbon – could result in unprecedented melting of the plateau’s glaciers, Asia One reported this week.

A study led by researchers from the Chinese Academy of Sciences’ Northwest Institute of Eco-Environment and Resources has found that increasing concentrations of black carbon in South Asia have reduced levels of summer precipitation over the Southern Tibetan Plateau, which in turn has accelerated the shrinking of that region’s glaciers.

The findings have prompted the scientists to call for cuts in black carbon emissions in South Asia to preserve a crucial water balance on the plateau and avoid future water shortages and geological hazards.

Black carbon – a type of soot – is a component of fine particulate matter. It results from the incomplete combustion of fossil fuels and biomass.

Black carbon emissions contribute to global warming by absorbing solar energy and then heating the surroundings. When deposited on ice or snow, black carbon reduces surface albedo, or the ability to reflect sunlight, which then heats the surface and quickens glacial melting. Ice covered regions like the Arctic, Antarctic and the Himalayas are all vulnerable to black carbon emissions, Asia One reported.

But in the case of the Tibet Plateau, the world’s third largest store of ice, such emissions do not have to travel far. South Asian countries are some of the world’s worst air polluters. Black carbon emissions from the Indian subcontinent are carried aloft to the Tibetan Plateau and worsen glacial melting, in what the researchers call a “direct effect”.

In their stud the researchers also discovered that black carbon originating from South Asia has impacted the glaciers by reducing the amount of precipitation in the Southern Tibetan Plateau.

In their analysis of precipitation data from 1961 to 2016, the researchers found that summer precipitation amounts over the Southern Tibetan Plateau began to decline in 2004 by an average of 4.4mm a year.

Summer precipitation accounts for more than 60 percent of the total annual precipitation over the plateau, so declines in the seasonal rains resulted in glacial shrinkage, the study said. And since the beginning of this century, the problem has accelerated.

Kang Shichang, one of the study’s corresponding authors and a researcher with the Chinese Academy of Sciences, said: “Black carbon emissions are expected to increase in South Asia. It is imperative to reduce emissions in South Asia to protect the Asian water tower.”

Climate Change

2024 was the first year above 1.5C of global warming, scientists say

Last year was the world’s hottest since records began, and each of the past ten years was among the ten warmest on record.

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The world just experienced the first full year in which global temperatures exceeded 1.5C above pre-industrial times, scientists said on Friday.

The milestone was confirmed by the European Union's Copernicus Climate Change Service (C3S), which said climate change is pushing the planet's temperature to levels never before experienced by modern humans, Reuters reported.

"The trajectory is just incredible," C3S director Carlo Buontempo told Reuters, describing how every month in 2024 was the warmest or second-warmest for that month since records began.

The planet's average temperature in 2024 was 1.6 degrees Celsius higher than in 1850-1900, the "pre-industrial period" before humans began burning CO2-emitting fossil fuels on a large scale, C3S said.

Last year was the world's hottest since records began, and each of the past ten years was among the ten warmest on record.

Britain's Met Office confirmed 2024's likely breach of 1.5C, while estimating a slightly lower average temperature of 1.53C for the year. U.S. scientists will also publish their 2024 climate data on Friday.

Governments promised under the 2015 Paris Agreement to try to prevent average temperatures exceeding 1.5C, to avoid more severe and costly climate disasters.

The first year above 1.5C does not breach that target, which measures the longer-term average temperature. Buontempo said rising greenhouse gas emissions meant the world was on track to soon also blow past the Paris goal - but that it was not too late for countries to rapidly cut emissions to avoid warming rising further to disastrous levels.

"It's not a done deal. We have the power to change the trajectory from now on," Buontempo said.

The impacts of climate change are now visible on every continent, affecting people from the richest to the poorest countries on earth.

Wildfires raging in California this week have killed at least five people and destroyed hundreds of homes. In 2024, Bolivia and Venezuela also suffered disastrous fires, while torrential floods hit Nepal, Sudan and Spain, and heatwaves in Mexico and Saudi Arabia killed thousands.

Climate change is worsening storms and torrential rainfall, because a hotter atmosphere can hold more water, leading to intense downpours. The amount of water vapour in the planet's atmosphere reached a record high in 2024.

But even as the costs of these disasters spiral, political will to invest in curbing emissions has waned in some countries.

U.S. President-elect Donald Trump, who takes office on Jan. 20, has called climate change a hoax, despite the global scientific consensus that it is human-caused and will have severe consequences if not addressed.

The U.S. experienced 24 climate and weather disasters in 2024 in which the cost of damages exceeded $1 billion, including Hurricanes Milton and Helene, according to the National Oceanic and Atmospheric Administration.

Chukwumerije Okereke, a professor of global climate governance at Britain's University of Bristol, said the 1.5C milestone should serve as "a rude awakening to key political actors to get their act together".

"Despite all the warnings that scientists have given, nations... are continuing to fail to live up to their responsibilities," he told Reuters.

Concentrations in the atmosphere of carbon dioxide, the main greenhouse gas, reached a fresh high of 422 parts per million in 2024, C3S said.

Zeke Hausfather, a research scientist at U.S. non-profit Berkeley Earth, said he expected 2025 to be among the hottest years on record, but likely not top the rankings.

"It's still going to be in the top three warmest years," he said.

That's because while the biggest factor warming the climate is human-caused emissions, temperatures in early 2024 got an extra boost from El Nino, a warming weather pattern which is now trending towards its cooler La Nina counterpart.

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Climate Change

Parts of US blanketed by heaviest snowfall in a decade

Virginia Governor Glenn Youngkin declared a state of emergency ahead of the storm. Similar declarations were issued in Kansas, Maryland, West Virginia and in central Illinois cities

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A massive storm packing heavy snowfalls, treacherous ice and severe weather unleashed its fury across more than a dozen states over the weekend, and may cause "highway chaos" in the central parts of the US on Monday, meteorologists warned.

The National Weather Service predicted about 20 to 30 centimeters of snow for the Annapolis, Maryland, area.

In a statement on X, Virginia Governor Glenn Youngkin declared a state of emergency ahead of the storm and encouraged residents to vote before the state’s special elections on Tuesday.

Similar declarations were issued in Kansas, Maryland, West Virginia and in central Illinois cities.

Parts of upstate New York saw one meter or more of snow from a lake effect event until late Sunday afternoon.

In Kentucky, Louisville recorded 19.5 centimeters of snow on Sunday, a new record for the date that shattered the previous mark of 7.6 centimeters set in 1910.

Lexington, Kentucky, also set a snowfall record, with 12.7 centimeters.

The storm was forecast to move into the Ohio Valley and reach the Mid-Atlantic states later Sunday and Monday, with a hard freeze expected as far south as Florida.

Virginia State Police reported at least 135 car crashes as the storm entered the state Sunday. A handful of injuries were reported.

In Charleston, West Virginia, where several inches of snow had fallen by Sunday night, authorities urged motorists to stay home.

The Kanawha County Sheriff’s Office said deputies were responding to crashes and 911 calls countywide. “Please be patient if you have called 911 for assistance. A deputy will call you or respond to you as soon as possible,” the sheriff’s office said in a statement.

In Indiana, snow fully covered portions numerous roads and highways prompting Indiana State Police to plead with motorists to stay off the roads.

“It’s snowing so hard, the snow plows go through and then within a half hour the roadways are completely covered again,” Sgt. Todd Ringle said.

Roughly 25 centimeters of snow had fallen in parts of Kansas, with snow and sleet totals predicted to top 36 centimeter for parts of that state and northern Missouri.

Meanwhile damaging winds brought down trees across the Deep South. The weather service issued tornado warnings Sunday in Arkansas, Louisiana and Mississippi.

The storms caused havoc for the nation’s passenger railways. More than 20 cancellations were planned on Sunday, 40 for Monday and at least two for Tuesday.

“If local authorities are telling people not to travel, it’s counterintuitive to try to run a full slate of services when people are being told to stay home,” Amtrak spokesperson Marc Magliari said.

The Midwest was hit especially hard. A train between Chicago and New York and several regional trains between Chicago and St. Louis were among those canceled Sunday.

Nearly 200 flights in and out of St. Louis Lambert International Airport were canceled, according to tracking platform FlightAware.

Starting Monday, the eastern two-thirds of the country will experience dangerous, bone-chilling cold and wind chills, forecasters said.

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Climate Change

Kandahar’s Takhtapul district hit hard by ongoing drought

Afghanistan has experienced three consecutive years of drought, including the most devastating drought in 30 years in 2021 and 2022.

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Residents of Takhtapul district of Afghanistan’s Kandahar province say they are struggling to survive amid an ongoing drought that has devastated their crops.

This rural community mainly relies on agriculture to survive but climate change has virtually ended any hopes of farming.

Afghanistan has experienced three consecutive years of drought, including the most devastating drought in 30 years in 2021 and 2022.

Climate experts predict that by 2050, 90% of its territory will be affected by drought.

Afghanistan is one of the ten countries most vulnerable to climate change. It's also ranked fourth in overall disaster risk.

Takhtapul residents have spoken out about their plight and said they have sustained extensive losses due to the drought

They said in the past they had made a living off farming, but now due to the severe lack of water, their land has become barren.

They also said this is forcing their youth and younger generation to find work in other provinces or outside the country.

Abdullah, a resident of Takhtapul district of Kandahar, said: "Our youths have gone to Pakistan and other provinces in search of work due to unemployment and drought. There they have wheelbarrows [for day labourer work] or they do other jobs."

On the other hand, local officials say that they are trying to reduce unemployment by launching development projects in this district.

Along with droughts and lack of work for young people, the breakdown of roads, lack of health centers and lack of suitable places for education are among the problems that the residents of this district want to solve.

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