‘Extremely rare event:’ Miles-long microalgae bloom knocks out most of Israel’s desalination plants

A microalgae bloom has spread along Israel's Mediterranean coast. Israel Oceanographic and Limnological Research institute

by  By Laura Paddison

 

A miles-long microalgae bloom in the Mediterranean Sea has been blamed for temporarily knocking offline many of Israel’s major desalination plants this week, threatening its main source of drinking water.

Five of the country’s six coastal desalination plants — which convert seawater into drinkable water — shut down on Sunday, according to Mekorot, Israel’s national water company. Since then, some of these facilities, which are privately owned and operated, have partially resumed operations, but only one was operating at full capacity on Thursday.

“An event of this kind has never occurred before in Israel … it was an extremely rare event,” said Lior Gutman, a spokesperson for Mekorot, although he stressed in roughly 99% of cases, there has been no drinking water shortage. 

 

Still, it’s an alarming situation given the country’s heavy dependence on desalination for drinking water. Israel is arid and has neither big rivers nor abundant rainfall, but its mastery of this technology has made it a water superpower. Desalination now provides at least 65% of its drinking water, with most plants located on the Mediterranean coast.

The problems started at the weekend, as a “sporadic, vast event of contaminates occurred across the Israeli coastline,” said Edo Bar-Zeev, an associate professor in water research at Ben-Gurion University, in Israel. When he and other scientists looked closer, they discovered it was microalgae, tiny organisms that feed on sunlight, carbon dioxide and nutrients in the water — and which can grow rapidly. 

Microscope images of microalgae from the bloom that formed along the Israeli coast. Tali Covas

 

The microalgae bloom — stretching more than a dozen miles at least, according to Bar-Zeev — is believed to have originated in the Nile Delta and traveled northward with the sea’s currents up Israel’s coast. This is “the first time I saw something in this extent,” said Bar-Zeev, who has been testing the coastal water for 20 years.

The country’s desalination facilities mostly use a technology called “reverse osmosis,” where water is pre-treated to remove larger contaminants, before it’s pushed through membranes which filter out salt, bacteria and other molecules to leave clean drinking water. 

 Algae, and the substances they produce, can foul and damage the membranes, said Michael Christopher Low, director of the Middle East Center at the University of Utah. If there’s too much suspended material in the water, the treatment processes cannot keep up. 

 

It’s happened before. A severe “red tide” — a harmful algae bloom — in the Gulf of Oman in 2008 and 2009 affected many desalination plants in that region.

In Israel, the government water system has “stepped in to close the gap” caused by the plant closures, Mekorot’s Gutman said. This has included pumping water from the Sea of Galilee, activating groundwater wells and using national water reserves.

Some cities have faced short-term local restrictions, including on garden irrigation and filling swimming pools, but the the main limitations affected farmers who use drinking water-quality water for irrigation, as opposed to those who use recycled water, Gutman said.

The timing compounded the problem. It happened in summer “when water demand in Israel is at its highest,” he said, adding “the situation has been challenging.” 

Israel's Water Authority places drinking water storage tanks near Damascus Gate in Jerusalem, Israel, on August 31, 2026, as part of emergency preparations after five of Israel's six seawater desalination plants were temporarily shut down. Mostafa Alkharouf/Anadolu/Getty Images

 

A bloom occurs when the right combination of environmental factors in the water come together that allow the algae to grow rapidly, said Tamar Guy-Haim, a marine ecologist at the Israel Oceanographic and Limnological Research Institute. These include nutrients, temperature, light, currents and mixing.

Mekorot said this recent bloom was part of “very unusual combination of factors,” including a sea storm that increased turbidity — the amount of suspended matter in the water — and raised sea temperatures to 86 Fahrenheit (30 degrees Celsius) and above. 

 

The extent of the disruption is striking. Desalination facilities have been forced to close before due to algae or jellyfish, “but multiple facilities over the large portion of our coast is something that is definitely abnormal,” Ben-Zeev said.

It’s something the country needs to figure out how to deal with — and will, he added. “It’s a fair estimation that this will not be a once-in-a-lifetime kind of event … you can assume that this will occur more and more through climate change.”

As the planet heats up, driven by humans burning fossil fuels, the oceans are changing. Temperatures are at record highs, currents are shifting and stronger storms wash more pollutants into the water, including sewage and fertilizers, which can trigger huge algae blooms. 

The Sorek desalination plant near the Israeli city of Rishon LeZion on November 22, 2021. This plant was one of the five temporarily knocked offline. Gil Cohen Magen/Xinhua/Getty Images

 

This temporary crisis also exposes a broader concern, experts say.

Desalination is becoming increasingly popular, especially as the climate crisis drives more severe heat and drought, undermining water security. But this growing dependence on a centralized, technical solution carries risks. “This event is causing considerable alarm and even some criticism that the system is too vulnerable to a dramatic disruption,” Low said. 

 

This could be natural or climate change-driven events, but there’s also the possibility of military and cyber threats. Desalination plants in the Gulf have been targeted and damaged during the US-Iran war, raising significant alarm in a region that depends overwhelmingly on this technology. Hackers have also targeted water facilities, including in the US.

Oil spills are another big concern. “It’s not if, it’s just when an oil spill in the vicinity of desalination facilities will occur,” Ben-Zeev said. A lot of plants are in water-scarce countries that are also big oil producers, such as the Gulf states.

A spill could potentially take plants offline for a much longer time than this microalgae bloom, he added. “That to me is way more worrying.”

Australian ski resorts to close up to a month early due to global heating and El Niño

Snow at Mount Buffalo, Victoria in July. Photograph: Marni Cordell/The Guardian

by  Graham Readfearn Environment and climate correspondent

‘Challenging’ weather conditions and lack of snowfall are being blamed after a winter that broke multiple heat records

Major Australian alpine resorts are closing their ski operations up to a month early after a winter that broke multiple records for heat with limited snow falls being washed away by rain.

Predictions in June that a building El Niño could combine with global heating for a challenging ski season came to pass, with seven resorts either already closed or announcing ski lifts will stop operating this weekend.

This week the Victorian resorts of Mount Buller, Mount Hotham and Falls Creek, together with Charlotte Pass in New South Wales, all announced ski operations would end this weekend.

The Victorian resort of Mount Baw Baw, the NSW resort at Selwyn and Tasmania’s Ben Lomond have already closed. Resorts typically aim to stay open until the first weekend of October.

Video - Footage shows first snow of the year falling at Perisher ski resort in New South Wales

 

Data from the Bureau of Meteorology show Falls Creek and Mount Hotham had their wettest winters in more than 30 years but, together with Mount Buller, they also had their warmest winters on record for average maximum and minimum temperatures.

Watkins said data from weather observations at Cabramurra in Kosciuszko national park suggested alpine winters had warmed by about 2C since the 1960s.

He said that temperature rise would have been the difference between precipitation falling as rain instead of snow. “It would have been a bumper season if it had been 50 years ago,” he said.

The El Niño currently in place in the Pacific Ocean can promote hotter and drier temperatures in Australia’s south-east in winter and spring.

This week the bureau forecast the current El Niño would be the strongest on record and Australian scientists said climate change had made the strength of the event six times more likely.

 

A bureau spokesperson said this winter’s heat was consistent “with a developing strong El Niño” and the season had seen long periods of high pressure in the Tasman Sea that directed warmer air from the north over alpine regions.

“But winter 2026 also experienced relatively warm nights, with cloud cover and moist soils resulting in less overnight cooling,” the spokesperson said.

“This is in contrast with historical El Niño events. This is all occurring against the background of a globally warmer climate, with daily global surface air temperatures since June close to or above the record levels in 2024.”

New South Wales, Tasmania and Victoria all recorded their hottest winters on record this year.

In July, many ski resorts broke all-time heat records for the month with temperatures during one hot spell up to 12C above average.

Climate scientists have been warning for decades that global heating will create a challenging future for Australia’s ski resorts and alpine habitats.

Josh Elliott, chief executive at the representative body Snow Resorts Australia, said there was “no question it has been a challenging season for natural snowfall”.

“This winter was shaped by a combination of abnormally warm weather and climatic variability, but it’s important to remember that in any outdoor environment, that variability can result in some seasons being better than others.

“This is an abnormal season and shouldn’t be considered in isolation as a reflection of what future seasons will look like.”

He said skiing, snowboarding and snow play had still been available in NSW, Victoria and the ACT “since the June long weekend, with all resorts across Australia operating through the July school holidays and beyond”.

“What this season has shown is the importance and value of the investment resorts have made in snow making, with underlying demand for snow holidays remaining strong through July and August.”

Climate crisis "could" be destabilising mountain areas like Nepal, experts warn

 

Nuwakot in Nepal. The UN’s scientific advisory body warned in 2023 that ice-bound landmasses would become more unstable. Photograph: Sanjit Pariyar/NurPhoto/Shutterstock

by  Jonathan Watts

 Unusual heat this year may have melted ice and thawed bonds that hold glaciers in place – leading to catastrophe

 

The devastating flash flood that has ripped through the border communities of Nepal and Tibet has heightened fears that the climate crisis is destabilising the geology of mountain and polar regions, threatening millions of people.

Satellite imagery suggests a glacier collapse high in the Himalayas was the primary cause of the deadly torrent of mud, water and ice that tore along the Bhotekoshi River on Wednesday. It swept away buildings and roads and left at least 360 dead and 1,400 missing.

A magnitude 4.4 earthquake was initially blamed for the collapse. However, it is now thought to have been caused by the huge wall of ice that crashed down on to the north slope of Langtang Lirung, a 7,000-metre (23,000ft) mountain, the impact of which registered a magnitude of 5.2.

“Additional analysis of long-period seismic waves indicates that the seismic energy was instead generated by a glacial collapse and debris flow,” the US Geological Survey said.

The ice-rock avalanche pushed boulders and other debris into the Lhende Khola River, a tributary of the Bhotekoshi River. Water levels in rivers downstream rose by between 7 and 9 metres within 30 minutes, according to the International Centre for Integrated Mountain Development, an intergovernmental scientific institution.

Scientists are still examining the precise mechanics of the Himalayan disaster, but many observe that glaciers and permafrost around the world are being weakened by global heating, caused by the burning of gas, oil and coal.

Flooding in the Bhotekoshi River has affected low-lying areas along the riverbanks and nearby homes in Nuwakot, Nepal. Photograph: Ap Tolang/Nexpher/Zuma Press Wire/Shutterstock

The detachment of a chunk of the glacier wall came amid unusual heat that was likely to have melted the ice that bound the splintered bedrock together.

Two days before the collapse, the ground temperature hit its highest point in the last two years, according to Dr Hamish Pritchard, a glaciologist with the British Antarctic Survey, whose team had sensors 6 miles (10km) away from the site.

“These high temperatures would have weakened the snowpack, filled crevasses with water and thawed the bonds between ice and rock that hold these glaciers in place,” he told the Science Media Centre.

 

A series of intense heatwaves has hit the region since early this year and affected countries around the world. Another factor here was the monsoon season, which saturated the soil and swelled rivers.

Disasters like this were foretold. In 2023 the UN’s top scientific advisory body warned that previously ice-bound landmasses – from permafrost tundra to mountain glaciers – would become increasingly unstable as temperatures rose.

 

“Every increment of warming will multiply and intensify future hazards from cryosphere regions,” observed the Intergovernmental Panel on Climate Change in its sixth synthesis report. “Floods, landslides and freshwater shortages from glacier retreat and snow loss pose a serious threat to mountain regions across the world.”

Average global temperatures are nudging closer to 1.5C above preindustrial levels. Even faster warming is occurring in alpine and polar regions because the loss of snow and ice is removing the thermal insulation of the land.

 

Dr Richard Waller, a senior lecturer in physical geography at Keele University, said: “The progressive loss of snow and glacier ice results in the surface being less reflective, so it absorbs more solar energy and heats up. In combination with atmospheric warming, this is leading to the melting of mountain permafrost.

“Think of the high mountains like this as shattered bedrock glued together by ice-filled joints. As the permafrost and the ice-filled joints melt, then there’s the potential for these types of catastrophic failure.”

The thaw is altering the shape, colour and solidity of the landscape, creating or expanding glacial meltwater lakes and, in the long term, threatening the origin of many rivers and the drinking supplies of populations downstream. In many parts of Asia, hundreds of millions of people depend on the rivers such as the Ganges and the Brahmaputra that descend from the glaciers.

Scientists have high confidence that glacier retreat is caused by human-driven global heating. This has caused glacier collapses from the Alps to the Andes. In the Langtang catchment area in Nepal, glacier loss rates have increased more than fourfold since 1964, a study has shown.

This has contributed to a loss of life on multiple occasions. A smaller flood hit the Bhotekoshi River in July 2025 and in 2015, the Langtang Lirung mountain was hit by an earthquake-induced avalanche that destroyed Langtang village.

As emergency services look for bodies and humanitarian relief groups mobilise for survivors, others are asking where next. Waller said any high mountain areas with glaciers and permafrost could be vulnerable, including the European Alps, Caucasus, Himalayas, Andes and beyond.

As glacier weakening accelerates, Pritchard called for greater disaster preparedness. “More avalanches and more floods are inevitable, particularly as lakes grow in front of the retreating glaciers,” he said. “Early warning systems are urgently needed to protect the people living in these valleys.”

Climate crisis could be destabilising mountain areas like Nepal, experts warn. Unusual heat "this year" may have melted ice and thawed bonds that hold glaciers in place – leading to catastrophe

 

Nuwakot in Nepal. The UN’s scientific advisory body warned in 2023 that ice-bound landmasses would become more unstable. Photograph: Sanjit Pariyar/NurPhoto/Shutterstock

by  Jonathan Watts

 

The devastating flash flood that has ripped through the border communities of Nepal and Tibet has heightened fears that the climate crisis is destabilising the geology of mountain and polar regions, threatening millions of people.

Satellite imagery suggests a glacier collapse high in the Himalayas was the primary cause of the deadly torrent of mud, water and ice that tore along the Bhotekoshi River on Wednesday. It swept away buildings and roads and left at least 360 dead and 1,400 missing.

A magnitude 4.4 earthquake was initially blamed for the collapse. However, it is now thought to have been caused by the huge wall of ice that crashed down on to the north slope of Langtang Lirung, a 7,000-metre (23,000ft) mountain, the impact of which registered a magnitude of 5.2.

“Additional analysis of long-period seismic waves indicates that the seismic energy was instead generated by a glacial collapse and debris flow,” the US Geological Survey said.

The ice-rock avalanche pushed boulders and other debris into the Lhende Khola River, a tributary of the Bhotekoshi River. Water levels in rivers downstream rose by between 7 and 9 metres within 30 minutes, according to the International Centre for Integrated Mountain Development, an intergovernmental scientific institution.

Scientists are still examining the precise mechanics of the Himalayan disaster, but many observe that glaciers and permafrost around the world are being weakened by global heating, caused by the burning of gas, oil and coal.

Flooding in the Bhotekoshi River has affected low-lying areas along the riverbanks and nearby homes in Nuwakot, Nepal. Photograph: Ap Tolang/Nexpher/Zuma Press Wire/Shutterstock

The detachment of a chunk of the glacier wall came amid unusual heat that was likely to have melted the ice that bound the splintered bedrock together.

Two days before the collapse, the ground temperature hit its highest point in the last two years, according to Dr Hamish Pritchard, a glaciologist with the British Antarctic Survey, whose team had sensors 6 miles (10km) away from the site.

“These high temperatures would have weakened the snowpack, filled crevasses with water and thawed the bonds between ice and rock that hold these glaciers in place,” he told the Science Media Centre.

A series of intense heatwaves has hit the region since early this year and affected countries around the world. Another factor here was the monsoon season, which saturated the soil and swelled rivers.

Disasters like this were foretold. In 2023 the UN’s top scientific advisory body warned that previously ice-bound landmasses – from permafrost tundra to mountain glaciers – would become increasingly unstable as temperatures rose.

“Every increment of warming will multiply and intensify future hazards from cryosphere regions,” observed the Intergovernmental Panel on Climate Change in its sixth synthesis report. “Floods, landslides and freshwater shortages from glacier retreat and snow loss pose a serious threat to mountain regions across the world.”

Average global temperatures are nudging closer to 1.5C above preindustrial levels. Even faster warming is occurring in alpine and polar regions because the loss of snow and ice is removing the thermal insulation of the land.

Dr Richard Waller, a senior lecturer in physical geography at Keele University, said: “The progressive loss of snow and glacier ice results in the surface being less reflective, so it absorbs more solar energy and heats up. In combination with atmospheric warming, this is leading to the melting of mountain permafrost.

“Think of the high mountains like this as shattered bedrock glued together by ice-filled joints. As the permafrost and the ice-filled joints melt, then there’s the potential for these types of catastrophic failure.”

A destroyed building in Devighat, Nuwakot. Photograph: Niranjan Shrestha/AP

The thaw is altering the shape, colour and solidity of the landscape, creating or expanding glacial meltwater lakes and, in the long term, threatening the origin of many rivers and the drinking supplies of populations downstream. In many parts of Asia, hundreds of millions of people depend on the rivers such as the Ganges and the Brahmaputra that descend from the glaciers.

Scientists have high confidence that glacier retreat is caused by human-driven global heating. This has caused glacier collapses from the Alps to the Andes. In the Langtang catchment area in Nepal, glacier loss rates have increased more than fourfold since 1964, a study has shown.

TImeline of how deadly Nepal and Tibet flash flood unfolded – explainer

 

This has contributed to a loss of life on multiple occasions. A smaller flood hit the Bhotekoshi River in July 2025 and in 2015, the Langtang Lirung mountain was hit by an earthquake-induced avalanche that destroyed Langtang village.

As emergency services look for bodies and humanitarian relief groups mobilise for survivors, others are asking where next. Waller said any high mountain areas with glaciers and permafrost could be vulnerable, including the European Alps, Caucasus, Himalayas, Andes and beyond.

As glacier weakening accelerates, Pritchard called for greater disaster preparedness. “More avalanches and more floods are inevitable, particularly as lakes grow in front of the retreating glaciers,” he said. “Early warning systems are urgently needed to protect the people living in these valleys.”

"Climate Change" - Nearly 1,400 missing, mostly tourists, after Nepal-Tibet flash flood kills at least 270

 

A drone view shows mud covering properties after the flash flood in Trishuli, Nepal. Photograph: Navesh Chitrakar/Reuters

 Nepal’s disaster authority said satellite data indicated a “snow-rock landslide” on the Nepal-China border may have caused the flood. Scientists say climate change is increasing the frequency and intensity of extreme weather events in the region.

For a prediction, read this 2016 article: 

 Entire villages swept away after glacial collapse triggers flood in mountainous region popular with trekkers and pilgrims

by  Hannah Ellis-Petersen in Delhi, Sam Jones, Kate Lamb and agencies

Rescuers are searching for nearly 1,400 people, most of them tourists, who are missing after a catastrophic flash flood hit Nepal and Tibet, thundering down valleys, obliterating entire villages and killing at least 270 people.

Efforts to locate those missing – including hundreds of people from India, the US, UK, Australia and Canada – have been complicated by the destruction of dozens of bridges and almost 25 miles (40km) of roads in the mountainous region popular with trekkers and pilgrims.

Videos from Wednesday’s disaster showed a massive wall of water crashing down on the border as people tried to flee. Trucks were upended and houses, roads ⁠and power projects swept away in Nepal, while ​officials in Tibet said they feared “major casualties” after a mudslide hit a border crossing.

Deadly flash flood hit Nepal and China - cinemagraph

 

Rescue teams have found bodies hundreds of miles downstream from the disaster zone in the Chitwan district of Nepal, near the Tibetan border. Dozens of injured people have been transported to Kathmandu for advanced medical care. By Thursday morning, the Nepali army had rescued more than 100 people from flood-affected areas by helicopter.

David Fisher, the head of the Nepal delegation of the International Federation of the Red Cross, said entire villages and market areas had been wiped out.

In the affected areas, houses, trees and vehicles were submerged or buried in mudslides. Helicopters hovered overhead all day, helping to rescue survivors.

The power, volume and speed of the surging waters gave little time for anyone to flee.

People from the hard-hit areas of Nuwakot and Dhading were seen gathering outside a Nepali army training centre – the base for helicopter rescue operations – seeking information about missing family members.

Police were recording the names of the missing just outside the barracks gate. Mobile phone torches were their only source of light as the area remained without electricity due to damaged hydroelectric infrastructure.

The village of Soley, in Nuwakot, which had about 25 homes, was virtually wiped out, according to Nirajan Paudyal, a Kathmandu-based journalist whose parents and other relatives live there. Desperate for information, he travelled to the area on Thursday for news of his family.

 

“There is no update till now,” he said. “I fear there won’t be any update.”

Almost 600 foreigners were among 826 people missing in Nepal, police and tourism ⁠officials said. Among those unaccounted were 177 from India, 63 from the US, 34 from Australia, 33 from Britain and 25 from Canada.

Chinese state media said at least 558 were missing on the Tibet side of the border, of whom at least 260 were foreign nationals.

Police in Nepal said 270 ⁠bodies had been recovered by Thursday afternoon local time, while Chinese state media reported three dead on the Tibet side of the border.

Many of the victims were on a pilgrimage to Kailash Mansarovar, a high-altitude site in ‌Tibet revered by Hindus and Buddhists among others.

Early reports from Nepali ​officials suggested an earthquake could have caused the lower part of a glacier to collapse and trigger ‌the floods. But the US Geological Survey later said what was initially reported ‌as a 4.4-magnitude earthquake was a seismic shock generated by glacial rock and ice collapsing and the flow of debris. “No earthquake had occurred,” it said.

amaged section of highway in Nepal after the flash flood. Photograph: Subaas Shrestha/NurPhoto/Shutterstock
 

An initial study of Planet Labs satellite imagery indicated a landslide of ice and rock triggered the debris-laden flood in the Lhende River, about 12 miles (20km) north-east of the Nepal-China Rasuwagadhi border crossing, Nepal’s national disaster authority said. Experts say the risk of such events is compounded by the extreme topography of the Himalayas.

People shared harrowing stories of how they managed to survive. “I started running. Then a wall of water came thundering down as if it was an earthquake,” said Bibek Kumal, a labourer who was working downstream from the worst-hit Rasuwa district, near Nepal’s Himalayan border with China’s Tibet.

From his hospital bed, Kumal said the torrent swept him downstream amid mud and debris but he survived by clinging to a mango tree. “Had there been no mango tree, I would ‌have been washed away to death,” he said.

Keshav Prasad Baral, a 68-year-old survivor who was being treated at a small hospital, said: “It was a huge gush of mud coming straight towards us. As it got closer, it kept rising higher and higher.

“I tried to grab my wife’s hand and take ⁠her to the terrace. But she was swept away by the mud. Four or five hours later, a helicopter came to rescue me. My wife is still somewhere beneath the mud. She’s gone.”

 

Nepali soldiers carrying a survivor of the flash flood. Photograph: Nepal Army/EPA

 

The United Nations secretary general, António Guterres, said UN teams and partners were mobilising supplies and personnel to support communities affected by the disaster. The US government said it would provide $500,000 in emergency assistance.

Tibet government officials deployed nearly 800 emergency workers and 150 vehicles as well as sniffer dogs and speed boats to help the rescue efforts, China’s official Xinhua news agency said.

The Chinese premier, Li Qiang, travelled to the affected area on the China-Nepal border on Thursday to oversee search efforts there.

 

The tour company Himalayan Glacier said 47 people, including two children, were missing from one of its groups in Nepal. Among them were 15 Australians, 10 Canadians, nine Nepalis, eight Americans, two Britons, two Singaporeans and one Russian-American dual citizen, its managing director, Sanket Pandey, said.

The Australian prime minister, Anthony Albanese, said his thoughts were with those concerned about their loved ones, and that getting information about the status of missing people remained difficult.

With Reuters and Agence France-Presse

New Colorado River plan will require steep cuts for three states as reservoirs tumble to new lows

A person stands at an overlook near Lake Powell's Wahweap Marina on July 14. John Locher/AP

by  Laura Paddison

 

California, Arizona and Nevada will be required to slash their water use from the drought-stricken Colorado River by 16 to 20% through 2028, under a federal plan set to be released in the next few days, according to a senior state water official.

But some fear it won’t be enough to save the lifeblood water basin as vital reservoirs plummet toward record lows.

The cuts will mark the latest stage of a long-running effort to figure out how seven basin states should share the depleted water of the Colorado River. They’re coming after years of fraught negotiations between the states have not managed to produce a deal, as the river system spirals further into crisis.

On Friday, the US Bureau of Reclamation published its final environmental impact statement, a 10-year operating framework for the waterway under which the lower basin states of California, Arizona and Nevada could face collective cuts of up to 3 million acre feet per year — enough water to supply roughly 9 million average US families. 

 “This framework provides the flexibility to respond to changing hydrologic conditions while preserving the opportunity for the Basin States to continue working toward durable, consensus-based solutions,” said Secretary of the Interior Doug Burgum in a statement Friday.

 The framework provides for specific operating plans to be developed every two years. Federal officials are expected to publish the first of these in the coming days, which will specify the exact cuts required of states through 2028 — anticipated to be around 20% for the lower basin. The upper basin states of Colorado, New Mexico, Utah and Wyoming are not expected to face mandatory cuts. 

Farms are seen in Yuma, Arizona, in April 2023. Will Lanzoni/CNN

 

The Colorado River is the lifeblood of the Southwest. It irrigates more than 5 million acres of farmland, generates enough electricity to power around 700,000 homes and provides water for 40 million people. However, it has shrunk dramatically over the past 25 years after years of heavy use and as climate change delivers hotter, drier weather and dwindling snow. Today, 95% of the basin is in drought.

The combined water level in Lake Powell and Lake Mead — the most important Colorado River reservoirs and two of the biggest in the United States — fell to a historic low last week. 

 Colorado River water is divided between states under the 1922 Colorado River compact, which allots 7.5 million acre-feet of water yearly for the four upper basin states and another 7.5 million for the three in the lower basin. But as water levels dwindle, states have been trying to work out how to get by with less. 

 The lower basin states have historically used the most water, primarily to support their vast farms and booming cities. Over the past few years, the three states have proposed cuts in their water use but want the upper basin states to share in the pain

A boat cruises near Sentinel Island in Lake Mead on July 25.en the seven states on water rights and usage. Ethan Miller/Getty Images

A formerly floating buoy sits high and dry in Lake Powell on July 15. John Locher/AP

People ride a golf cart beneath a protruding dock that was used during higher water levels at Lake Powell's Antelope Point Marina on July 14. John Locher/AP

 The upper basin states — which, unlike the lower basin states, cannot be compelled by federal authorities to cut their water use — have resisted mandatory cuts, arguing that climate change has reduced water availability and the cuts should be shouldered by the more water-intensive states

 

The current agreement governing the operation and management of the Colorado River, which came into force in 2007, expires this year and a February federal deadline for the states to reach a new agreement came and went with no deal.

Experts fear the current plan won’t be enough as the water crisis deepens. Last winter was one of the driest, warmest winters on record for the western US, leaving the region in a snow drought

 Lake Mead appears on track to tumble to its lowest level on record as early as next week, and Lake Powell may do so next month. Lake Powell could potentially fall so low by spring 2027 that it reaches “minimum power pool” level, meaning its dam will no longer be able to generate hydropower, according to a July report from the Bureau of Reclamation.

 

There are fears that the issue may end up the subject of lengthy and expensive court battles. Arizona in particular has been rattling the litigation saber. The state is likely to get saddled with the steepest cuts during times of shortage due to a deal it made in the 1960s, but its needs are huge to feed sprawling farms and industry.

The new framework “does nothing to elevate expectations around a coherent seven-state plan for shared sacrifice,” the Arizona Department of Water Resources said in a statement Friday, saying the reductions proposed “would devastate Arizona’s water users and its economy.”

States will still be able to carry on negotiations in the meantime, and any agreement could supplant the federal plan. 

‘Stop all outdoor activities’: South Korea records its highest ever temperature

Women use portable fans to cool off at the Gyeongbokgung Palace in Seoul in July. South Korea has recorded its hottest temperature and issued a heat alert. Photograph: Jade Gao/AFP/Getty Images

By Mark Saunokonoko

 Authorities issue alert saying indoor spaces without airconditioning are ‘dangerous’ as temperatures pass 40C for fifth straight day 

South Korea has registered its highest temperature since records began more than a century ago, as authorities warned people to “immediately” stop all outdoor activities in affected areas.

The south-eastern city of Yangsan saw the temperature reach 42.5C on Sunday afternoon, the Korea Meteorological Administration (KMA) said, the highest temperature reported since modern weather observation began in 1904.

Yangsan has been the centre of an ongoing heatwave, where temperatures exceeded 40C for a fifth consecutive day on Sunday, while many other cities including Daegu and Busan are seeing temperatures climb into the high 30s.

 

People gathered in airconditioned shopping malls or cafes to escape the blistering temperatures. Others sought relief under mist-spray zones set up in Seoul. Ju Dong-yeol, 27, took refuge from the heat in a Starbucks in the South Korean capital, along with his parents and told AFP “it is too hot to be outside doing anything”.

“I can’t think of anything else to do other than stay in airconditioned places like home, shopping malls and cafes,” the office worker said.

 

The city of Gyeongju, about 240km south-east of Seoul, reached 40.3C on Sunday, its highest recorded temperature in eight years.

North Korea has also faced punishing heat, with temperatures soaring as high as 40C in some regions, state media reported on Monday. Residents in Pyongyang have endured a week of nights where the temperature has not dropped below 25C.

More than 20 localities in South Korea were under emergency heatwave alerts on Sunday – a new warning category introduced this year to better address rising temperatures. An emergency alert is issued when areas experiencing a heatwave are forecast to hit perceived temperatures of 38C or an actual temperature of 39C for the day.

Workers harvest strawberries under parasols to protect against the scorching sun in Miryang, South Gyeongsang Province, South Korea. Photograph: YONHAP/EPA

 

Issuing a heat warning, the weather agency urged people to “immediately stop all outdoor activities”, adding that “indoor spaces without air conditioning are dangerous”.

“Move immediately to a cool place, such as a designated cooling centre or a shaded area, and stay hydrated while resting,” it advised.

Fearing for those people most vulnerable to heat, the prime minister, Han Seong-sook, ordered local officials to strengthen safety checks on residents and to ensure a stable power and water supply was maintained.

Easterly winds are expected to push the extreme heat further inland on Monday, with Seoul forecast to reach 37C. “Temperatures in South Jeolla and South Gyeongsang are expected to exceed 39C, bringing extreme heat at life-threatening levels,” the KMA said.

People stand in a mist-spraying zone to cool off on a street in Seoul. Photograph: Jung Yeon-Je/AFP/Getty Images

 

Officials are also monitoring Typhoon Dolphin, which is now tracking towards China’s south-east coastal regions, south of the Korean peninsula, and could dictate how long the stifling heat persists.

If the typhoon moves towards eastern China, it could increase humidity and potentially worsening the heatwave and tropical nights in Korea, the KMA said. But a path closer to the south of the peninsula could bring stronger winds, greater cloud cover and rain, temporarily easing the heat.

KMA data show the average annual number of heatwave days in the country has more than doubled to 19 in the past five years.

A heatwave day is defined as one with a maximum temperature of at least 33C.

South Korea’s professional baseball league was forced to cancel one game in Changwon after the city’s temperature climbed to 39.5C, marking the second consecutive game cancellation in the city.

“The decision was made with the safety and health of spectators and players as the top priority, as a severe heatwave warning remains in effect for the Changwon area,” said the Korea Baseball Organization in a statement.

Scientists warn that extreme weather events such as heatwaves are becoming more frequent and intense as a result of human-induced climate change.

Adding to the extreme weather is the return this year of El Niño – a natural climate phenomenon that warms Pacific Ocean surface temperatures and typically occurs every two to seven years.

With Agence France-Presse