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The Threat to Ocean Monitoring The Trump administration's plan to dismantle an ocean observation system vital to understanding the climate crisis and marine ecosystems would “severely degrade” the accuracy of weather predictions and El Niño forecasts, with economic consequences for the US, European and American scientists have warned. The Ocean Observatories Initiative The Ocean Observatories Initiative (OOI), run by the US National Science Foundation, is a vast network of seafloor systems, underwater gliders and moored surface platforms that feeds data to researchers, policymakers, educators and mariners worldwide. The initiative, which covers both US coastlines and extends into the North Atlantic and Southern Ocean, has been used to study marine heatwaves, harmful algal blooms, subduction zone earthquakes, ocean acidification and fisheries variability. The Data Analysis Decommissioning the US system, which plays a major part in a global ocean observation network, would lead to a massive increase in error in the annual estimates of ocean heating rates, according to research published last month. Removing US observations alone would produce a 163% increase in error for annual ocean heating rates. The Impact Analysis The loss of US observations, in a year predicted to be an El Niño year, with “supercharged” weather extremes, could also “lose the ability to see it coming clearly to act in time”. The stakes are concrete: farmers in the US and across South America use El Niño forecasts to decide what to plant and when – whether to expect drought or flooding shapes every agricultural decision months in advance. The Prediction “The US government wants to save less than a billion in sensors, which are the eyes and ears of the ocean” said Abrahams. “We have hundreds of billions in climate costs per year. The cost of the observation system is a fraction of the climate costs from hurricanes and storms that hit the US. ” The system, is, Abraham said is “quite an inexpensive way to reduce climate-related costs”.

The Escalating Heat Crisis in EuropeMeteorological summer has begun with scorching heat that struck before spring was even over. Western Europe, now mostly free from last week's heat dome that shattered temperature records for May in the UK and Ireland, is already bracing for another sweltering summer. The World Meteorological Organisation has warned everyone to prepare for the imminent return of the warming weather pattern El Niño, which will likely exacerbate the situation.The Human Cost of Rising TemperaturesScientists are still calculating the death toll from the latest bout of hot weather, but early modeling suggests 250 extra deaths in the UK alone on the weekend before temperatures peaked. The full death toll is expected to be particularly high because the heat struck before people had properly adjusted their behavior to stay safe. Heat kills more people in Europe than almost any other issue, from crime to terror attacks, with many tens of thousands of early deaths each year. A study in September attributed two in every three heat deaths in European cities to climate breakdown.The Policy Gap in Heat PreparednessDespite the growing threat, simple steps to save lives—many of which are cheap or would pay for themselves in the long run—are largely absent from national politics. A survey of European countries in 2024 found just 21 of 38 had heat-health action plans. Efforts to transform carparks into green spaces are often still considered radical. This collective denial persists even as the scientific evidence mounts about the dangers of extreme heat.Climate Shelters: A Growing ResponseIn response to the crisis, climate shelters have emerged as a critical adaptation strategy. These spaces, where people can take refuge, cool down, and drink water, have become popular in Barcelona, where they've grown to more than 400 since the local program began in 2020. The concept has now spread across Spain, with Pedro Sánchez, the socialist prime minister, announcing a national network of climate shelters as part of a "state pact to tackle the climate emergency." Cities across Europe are adopting similar approaches, with formal cooling zones appearing from Paris to Vienna.Regional Disparities in Heat VulnerabilityWhile southern Europe is most exposed to punishing temperatures, the real test for adapting to a warmer world may come in northern Europe. Streets and buildings in Mediterranean countries have been designed with heat in mind—think shutters, awnings, shaded streets, and public fountains—and there are signs that people are already reducing risk by adapting. Northern European countries such as the UK, Switzerland, and Norway will suffer the greatest relative rise in uncomfortable temperatures, according to a 2023 study.Toward a Cooler Future: Practical SolutionsIn the UK, poorly insulated homes expose people to dangerous temperatures in both winter and summer. The government's official climate advisers have recommended that air conditioning be installed in all care homes and hospitals within the next 10 years, and in all schools within 25 years. While greening cities and reducing pollution remain critical, individuals can also make a difference through simple actions: drawing blinds, drinking water, staying indoors during the hottest parts of the day, and checking on vulnerable neighbors. These interventions, doctors and scientists assure, can make a meaningful difference in saving lives during extreme heat events.

The Imminent El Niño Event Australia should prepare for an imminent El Niño, with the Bureau of Meteorology and other agencies forecasting that the weather phenomenon is likely to develop in the coming months. “The models are really aligning now,” Felicity Gamble, a senior BoM climatologist, said. “We are expecting a transition to El Niño sometime during winter.” El Niño's Impact on Australia The World Meteorological Organization said on Tuesday there was a 90% chance of an El Niño developing in the Pacific before November – a phenomenon that historically has increased the likelihood of hotter and drier conditions for Australia’s east. El Niño is the warm phase of the El Niño-Southern Oscillation (Enso), one of the key drivers affecting global climate. During an El Niño, sea surface temperatures in a central region of the equatorial Pacific become warmer than average, resulting in a shift in atmospheric circulation. Historical Context and Climate Change In Australia, El Niño has tended to result in warmer-than-average temperatures across most of the south of the country, and been linked with an increased risk of drought, heatwaves, bushfires and coral bleaching. For eastern Australia, nine of the 10 driest winter-spring periods on record have occurred during El Niño years. Dr Andrew Watkins, a Climate Councillor and former head of climate prediction at the BoM, said: “Climate change and El Niño are a very dangerous double act. Climate change is already pushing us to more time in drought, more bushfire weather and extreme heat. Climate pollution is reinforcing some of these impacts from El Niño.” Future Outlook The BoM last week said that models indicated the forecast El Niño – the first since spring 2023 – would be “at least moderate in strength, with the possibility of a strong event”. However, Gamble emphasised that the strength of an El Niño does not “necessarily correlate exactly with the strength of the impacts in Australia”, as there were other climate patterns that influenced weather locally, such as the Indian Ocean dipole and the southern annular mode.

The Surge in Malaria CasesAcross Zimbabwe, malaria cases and deaths are surging after US funding cuts disrupted key malaria control programs. Precious Mvundura, a 37-year-old from eastern Zimbabwe, experienced firsthand the deadly impact of this crisis when she and her five-year-old son contracted malaria. While they both recovered after seeking treatment early, many others have not been as fortunate.Disruption of Critical Health ProgramsShortly after returning to office for a second term in 2025, US President Donald Trump slashed foreign aid funding, including programs backed by the United States Agency for International Development (USAID). In Zimbabwe, these cuts disrupted tuberculosis, HIV/AIDS and malaria research, prevention and treatment programs. Among the affected initiatives were the Zimbabwe Entomological Support Programme in Malaria (ZENTO) at Africa University in Mutare and the Zimbabwe Assistance Programme in Malaria II (ZAPIM II), which had helped strengthen malaria diagnosis, treatment and prevention in high-burden districts.Rising Statistics and Human ImpactUSAID had disbursed $270m for health and agriculture programs in Zimbabwe in 2024. Since the funding cuts, malaria cases have jumped dramatically, reaching 65,399 between January and April 2026, up from 36,000 recorded during the same period in 2025 and 17,000 in 2024. Deaths have also risen sharply, reaching 174 between January and April 2026, compared with 85 during the same period last year and 34 in 2024.Resource Shortages and VulnerabilityThe disruption of donor-funded programs has led to critical shortages of mosquito nets, diagnostic kits, and treatment drugs in rural areas. Village health workers report that they no longer receive adequate supplies, forcing suspected malaria patients to travel long distances to clinics for testing and treatment. Zimbabwe's dependence on donor funding for essential medicines, diagnostic kits and mosquito-control supplies has left the country particularly vulnerable to such funding disruptions.Climate Change as an Aggravating FactorExperts note that climate change is also driving the spread of malaria and other vector-borne diseases across Africa. Rising temperatures are allowing malaria to spread into higher-altitude areas, which were once less vulnerable to outbreaks. Zimbabwe experienced El Niño between 2023 and 2024, followed by heavy rainfall in 2025 and 2026, creating ideal breeding conditions for mosquitoes. The current spike in malaria cases is closely linked to these heavy rains during the 2025–2026 season.Future Outlook and ChallengesZimbabwe aims to eliminate malaria by 2030, in line with the target set by the African Union. However, health experts warn that unless funding gaps are urgently addressed, Zimbabwe risks losing years of progress made in reducing malaria infections and deaths. The government needs to strengthen domestic health financing to reduce dependence on foreign donors, as external partners can withdraw financial support anytime should their interests shift. With climate change likely to continue creating favorable conditions for malaria transmission, the need for sustainable funding and robust prevention systems has never been more critical.

The Lead: Unprecedented Spring Heatwave Claims LivesEurope is experiencing record-breaking spring heatwaves that have shattered temperature records and caused multiple deaths, with scientists describing the temperature extremes as "mind-bogglingly crazy." The UK has recorded its hottest May temperatures since records began, with temperatures reaching 35.1C in west London, while France activated its national heat warning system for the first time in May since 2004, reporting seven heat-related deaths. These early-season heatwaves are particularly hazardous as people's bodies haven't had time to acclimatize to the extreme temperatures.The Event Details: Record-Breaking Temperature ExtremesThe recent heatwave has seen temperatures across Europe reach unprecedented levels for this time of year. In the UK, temperatures shattered the historical May temperature record by a full 2C, with London's Kew Gardens recording a peak of 34.8C on Monday, followed by a "tropical night" at Kenley airfield where lows did not drop below 21.3C. The record was beaten again on Tuesday with a high of 35.1C in west London. The Met Office described these temperatures as "exceptional in the UK even in mid-summer, let alone in May."In France, temperatures surpassed 37.1C in the south-west, prompting the activation of the national warning system for the first time in May since its introduction in 2004. Météo-France noted that while abnormally hot periods have occurred in May in previous years, "nothing comparable to this one" has been recorded. Spain is bracing for temperatures as high as 40C this week.The Data Analysis: Human Cost of Rising TemperaturesThe human cost of these extreme heat events is staggering. Data compiled by climate and health experts shows that in 2024, summer heat in the EU claimed roughly three times more lives than car crashes, 16 times more than murders, and more than 10,000 times more than terrorist attacks. Garyfallos Konstantinoudis, an environmental epidemiologist at Imperial College London, estimates that an extra 250 heat-related deaths occurred in England and Wales between Saturday and Monday during the recent heatwave."Early-season heatwaves are especially hazardous because our bodies have not had time to acclimatise," Konstantinoudis explained. "For vulnerable groups without access to cooling – particularly elderly people, the very young and those with underlying health conditions – these temperatures are quite simply dangerous and potentially fatal."The Impact Analysis: Climate Crisis Accelerates Extreme WeatherThe specific trigger for the record temperatures is an area of high pressure trapping heat, but this comes on top of a global rise in average temperatures, which has increased the likelihood of extreme weather events. Peter Thorne, a climate scientist at Maynooth University in Ireland, stated: "We know beyond a shadow of a doubt that the climate crisis had made heatwaves such as the latest one stronger and more likely."The agricultural sector is already feeling the impacts, with farmers across Europe sounding the alarm. A regional lobby group in the Netherlands has warned of stress from prolonged heat and drought, while the young farmers association in Aragón, Spain, has warned of a possible "catastrophe" for cereal crops due to extreme heat and lack of rain.Simon Stiell, UN Climate Change Executive Secretary, emphasized: "This latest heatwave in Europe is a brutal reminder of the spiraling impacts of the climate crisis, both human and economic. The main culprit is the world's addiction to burning coal, oil and gas, and destroying forests."The Prediction: A Summer of Extremes AheadScientists have warned that El Niño, a warming weather pattern projected to return in a particularly potent form this year, could lead to even hotter temperatures in 2026. Current projections foresee it reaching moderate strength in the summer and peaking toward the end of the year."What matters much more than hype around an upcoming El Niño is that we have permanently shifted the climate," Thorne explained, comparing it to "walking into a casino and rolling a seven on a six-sided dice." He added: "I expect numerous notable extremes in Europe this summer because that is our new reality – but exactly what, where, when and with what impacts is not predictable."The UN's Stiell concluded: "Many other parts of the world are also getting hit hard, such as India and other parts of Asia. The science is clear that human-induced climate change is making these heatwaves more frequent and extreme."

The Historic Temperature Milestone and Ongoing HeatwaveA temperature of 33.5°C was recorded at London’s Heathrow airport on Monday lunchtime, shattering the previous May record set in Camden Square in 1922 and last matched in Tunbridge Wells and Regent’s Park in 1944. The Met Office expects temperatures to climb further to 35°C on Tuesday, with highs of 31°C forecast for Wednesday and 30°C on Thursday. Overnight temperatures also broke the UK’s highest minimum May temperature, with Kenley airfield recording a low of 19.4°C on Sunday.Climate Adaptation Urgency and Health RisksThe record-breaking heat underscores the growing impact of climate change on British life. Dr Chloe Brimicombe, a climate researcher at the University of Oxford, called it 'a reminder of how climate change is impacting our lives in the UK. It highlights the urgency of recent calls for heat adaptation.' Amber heat health alerts were issued on Friday, indicating a possible risk to life, particularly for the elderly, pregnant women, and those with underlying illnesses. Experts describe heat as a 'silent killer' because many related deaths go uncounted in official statistics; last summer, scientists attributed two in three heat-related deaths in European cities to climate breakdown.Policy Recommendations for a Hotter FutureLast week, the UK’s Climate Change Committee warned that British homes, hospitals, and schools are ill-equipped for the projected temperature rise. Its recommendations include installing air conditioning in all care homes and hospitals within 10 years and in all schools within 25 years, as well as setting maximum working temperatures for indoor and outdoor environments. Gareth Redmond-King of the Energy & Climate Intelligence Unit stressed that 'cutting those emissions to net zero is the only way to halt climate change and limit the danger,' but added that adaptation is equally critical. The current heatwave is driven by high pressure over the country, caused by sinking, compressing, and heating air, with the risk of more extreme heat amplified by the expected arrival of El Niño later this year.

The Marine Heatwave's Persistence and ExpansionAn enormous marine heatwave off the US west coast is ringing alarm bells among ocean and atmospheric scientists as new data shows its ecological and environmental effects are intensifying. The unusual area of warm water has persisted since peaking in size during September 2025 and still stretches thousands of miles from the California coastline – more than halfway across the Pacific – affecting a vast triangle-shaped region of oceanic habitats from Hawaii to British Columbia and southward to Mexico.The Event DetailsAs recently as early April, marine scientists had hoped that the heatwave might diminish and the worst of its effects may be avoided. However, new projections released last week by the National Oceanic and Atmospheric Administration (Noaa) show it is now expected to expand and strengthen in the months to come.The Data AnalysisScientists say the effects may already be far reaching. A surge in the marine heatwave would accompany the formation of El Niño in the tropical Pacific – resulting in an atmospheric and oceanic mélange that could influence everything from record-breaking temperatures on land to disrupted marine food chains.The Impact AnalysisAdditional data acquired in recent weeks has left climate scientists gobsmacked and re-examining their assumptions of how the complex interplay between the ocean and the atmosphere could accelerate the effects of human-caused climate crisis. Climate scientists said the persistent marine heatwave has contributed to shockingly extreme temperatures downstream across most of the United States.The Prediction“There’s real concern right now that even if this marine heatwave didn’t persist, we’re heading into a bad wildfire season with poor water supply conditions,” said Larry O’Neill, an Oregon State University climatologist. “Our summer is going to be much warmer than normal.”

Experts are closely monitoring climate patterns in the Pacific Ocean, which indicate a high chance of El Niño developing this summer. A strong El Niño event could lead to severe weather conditions, including super-charged rainstorms and droughts, depending on the region. A 'super El Niño' could push 2027 to break global heat records, according to climate scientists. This phenomenon occurs when ocean surface temperatures in the central and eastern tropical Pacific Ocean warm up, leading to significant impacts on global weather patterns. El Niño is characterized by warming of the ocean surface in the central and eastern tropical Pacific Ocean. It's one of three states scientists observe: La Niña, conversely, happens when sea surface temperatures are below average, and neutral conditions are defined when neither El Niño or La Niña are present and surface temperatures are about average. The 'El Niño-southern oscillation' (Enso) tends to develop during spring in the northern hemisphere and shifts every three to seven years. Warming and cooling at sea surface during El Niño and La Niña can range from 1C to 3C, and have enormous effects on precipitation, drought, heat, and climate disasters in different regions. Conditions are currently shifting from La Niña to a neutral pattern, according to the latest outlook from the US Climate Prediction Center. Models show a 62% chance El Niño will emerge this summer and linger until at least the end of the year. A super El Niño that occurred in 2015 brought severe drought in Ethiopia, water supply shortages in Puerto Rico, and smashed records after unleashing a vicious hurricane season in the central North Pacific. A 'super' El Niño means one that is stronger, typically defined by sea surface temperatures spiking up to at least 2C. Noaa scientists have given a 1 in 4 chance that this could happen by fall or winter, with the caveat that spring forecasts are sometimes muddled. Transitions in conditions that happen in the spring can make outcomes a bit harder to predict. Experts warn that a strong or super El Niño could lead to drought and heat across Australia, southern and central Africa, India, and parts of South America. Heavy precipitation, meanwhile, could hit the southern tier of the US, parts of the Middle East, and south-central Asia.