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Welcome to Cited, your essential guide to new climate research.

In the news

SPRING HEATWAVE: Temperature records for May fell across western Europe as the region baked in an “exceptionally early” heatwave, reported the Associated Press. The outlet noted that temperatures reached 35.1C in the UK and 36C in France at the end of last month, with the latter’s national weather service stating that a “heat dome” had produced temperatures more than 10C higher than “usual”. BBC News said temperatures reached 40.3C in Portugal. Carbon Brief explored how the media covered the extreme weather and the role of climate change.

CLIMATE RESEARCH ‘STYMIED’: The White House released draft regulations that would “give political appointees the final word” on federal research grants and other funding across government agencies, reported Scientific American. According to Bloomberg, climate experts said the “sweeping” changes would “stymie research in the field”. At the same time, the Guardian reported the National Science Federation – a US government agency – announced it would be dismantling a $368m deep-sea observation system that provides “crucial” data on ocean systems and climate change. [For more, see ‘Spotlight’ below].

WMO WARNING: A report from the World Meteorological Organization (WMO) and UK Met Office, covered by Reuters, found that average global temperatures are forecast to reach “near-record levels” in the next five years. The newswire said the report projected that average temperatures each year over 2026-30 will range between 1.3-1.9C above pre-industrial levels, with one year where temperatures will top the warmest year on record, set in 2024.

Research picks

Impacts

  • Climate change and population growth have led to a 51% increase in global exposure to extreme daytime heat in cities over the past two decades | Communications Earth & Environment
  • Global warming interacts with poverty to “magnify educational disruption” and “deepen existing inequities” among children and young people | The Lancet
  • Human-caused greenhouse gas emissions has increased the likelihood of “landfalling” oceanic heatwaves by a factor of nine | One Earth

Nature

  • Wildfire “disturbances” have been shifting Canada’s forests from a carbon sink to a carbon source since the 2000s | Global Change Biology 
  • Following decades of rapid decline, mangrove forests around the world have been recovering since 2010, with both forest loss and degradation rates slowing | Science 
  • Large-scale cultivation of macroalgae has “low potential” for carbon dioxide removal and unintended consequences that “can be substantial” | Biogeosciences 

Projections

  • Global hailstorm-induced damage potential could increase by 37-42% by the late 21st century, depending on the emission scenario | Nature 
  • Even under a low-emissions scenario, 45% and 35% of mountain bird and mammal species, respectively, are at risk of seeing losses in habitat range by 2050 that outweigh any gains by at least 20% | Conservation Biology
  • Future warming will likely boost natural methane emissions from freshwater, as methane-oxidising bacteria fail to keep pace | Nature Climate Change

Captured

China accounts for more “conventional” carbon dioxide removal (CDR), such as afforestation and reforestation, than any other country in the world. That is according to the third edition of the annual state of carbon dioxide removal report, published last week and covered in detail by Carbon Brief. China’s average conventional CDR of 539m tonnes of CO2 over 2014-23 is more than double that of the US, the next-highest country.   


625

How many times greater cities in the global south experienced “compound” exposure to extreme heat and air pollution than global-north cities over 2003-20, according to an npj urban sustainability study.


Spotlight

AMOC observations at risk

Ocean Station Papa instrumentation buoy, among those slated for removal.
Ocean Station Papa instrumentation buoy, among those slated for removal. Credit: PMEL

The Irminger Sea, a patch of frigid ocean east of Greenland, plays an outsized role in the Earth’s climate.

Here, surface water that has travelled thousands of kilometres from the tropics grows cold and dense enough to sink to the ocean’s depths – a transformation that must occur for the water to begin a long journey back to the southern hemisphere.

This makes the Irminger Sea an “action centre” for the mighty Atlantic Meridional Overturning Circulation (AMOC), the vast system of ocean currents that keeps temperatures in Europe mild.

Last week, the US government announced plans to dismantle ocean moorings installed in the Irminger Sea which, among other things, collect data on the health of the AMOC.

This came as part of a programme to “descope” the Ocean Observatories Initiative, a $368m network of ocean sensors installed in the Pacific and Atlantic oceans.

Two of the moorings earmarked for removal in the Irminger Sea form part of an internationally funded, trans-Atlantic AMOC monitoring array, known as OSNAP, that stretches from Canada to Scotland.

Experts told Carbon Brief the move by the Trump administration highlights the vulnerability of AMOC observation systems around the world. These deep-sea moorings – scattered across the Atlantic – collect real-time data on, among other things, ocean current, temperature, pressure and biochemistry.

Prof Penny Holliday, chief scientific officer of the UK National Oceanography Centre, told Carbon Brief that the OSNAP array, as well as the RAPID array at 26N, are “entirely dependent” on research grants that have to be “continually reapplied for”.

“Funding is perilous all the time,” she said.

A report prepared last month by scientists for Nordic ministers exploring the security of funding for AMOC observing systems warned that RAPID and OSNAP were in “critical condition” and faced “material exposure over an 18-month horizon”. Meanwhile, other key basin-wide and global components of the global AMOC observing system were rated as “at risk”.

It is not just US funding that is uncertain. The report notes, for example, that the five-yearly funding the UK provides to RAPID and OSNAP is “at risk from 2027 due to year-on-year budget reductions” at the Natural Environmental Research Council.

(RAPID is funded by the US and UK, whereas OSNAP is backed by five different countries, with the US contributing half of the total financial support.)

Report co-author Dr Femke de Jong from the Royal Netherlands Institute for Sea Research told Carbon Brief that “continued AMOC observations” are under pressure in “multiple countries”. She said:

“While the risk of a declining AMOC to society is starting to be recognised, there is not yet a system or institution in place to guarantee a way to monitor it.”

AMOC monitoring arrays are still in their infancy – RAPID, the oldest, was launched in 2004. Two decades of data captured so far shows that the AMOC is slowing down. However, scientists will need many more years of data to be able to confidently link the decline to climate change, rather than natural variability in the ocean.

NOC’s Holliday points to the disconnect between scientific and funder timelines:

“The timescale of observations needed in order to be able to detect a climate change signal from the very naturally variable ocean is around 40-60 years…. [And yet], in the Netherlands, they have to apply for a new grant for their ocean moorings every two years. They are going to have to do that for 40 years.

“This is a very inefficient way of getting funding for what should be critical infrastructure.”

Preprints to watch

Carbon Brief’s pick of new papers still going through peer review

  • Urban areas were responsible for two-thirds of CO2 emissions from burning fossil fuels in 2022 | Nature portfolio
  • Climate adaptation measures are responsible for one-quarter of greenhouse gas emissions and three-quarters of human freshwater withdrawals | Earth System Dynamics
  • Global food miles – the emissions generated from transporting food – could be “lower than previously estimated”, at around 0.82bn tonnes per year | Nature portfolio

Noticeboard

  • 10 June: AMS Washington Forum early registration deadline 
  • 10-12 June: Fourth international conference on carbon dioxide removal, Milan
  • 11 June: Application deadline for postdoctoral research position in the political economy of net-zero at the University of Oxford; Salary: £39,424-47,779
  • Mid-June: AGU annual meeting abstract submissions open
  • 17 June: World Weaving climate research programme funding application deadline
  • 17 June: CCMC lecture (online): “Temperature, health and adaptation: What actually protects people?”
  • 21 June: Application deadline for postdoctoral research position in extreme event health impacts at Vrije Universiteit Amsterdam; Salary: £42,552-66,456

Cited is researched and written by Cecilia Keating, Robert McSweeney, Ayesha Tandon, Daisy Dunne and Dr Giuliana Viglione.

Please send tips, feedback and upcoming climate research to cited@carbonbrief.org

This is an online version of Carbon Brief’s fortnightly Cited email newsletter. Subscribe for free here.

The post Cited 9 June 2026: Europe’s ‘exceptional’ heatwave | Warming forecast | AMOC observations ‘at risk’ appeared first on Carbon Brief.

Cited 9 June 2026: Europe’s ‘exceptional’ heatwave | Warming forecast | AMOC observations ‘at risk’

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Sewing and Painting the Future

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The iconic Greenpeace ship hosts community and family activities over the weekend from 27-30 April, including banner-making workshops and tours of the ship, culminating in a community paddle out for the climate and ocean at South Beach.
© Harriet Spark / Grumpy Turtle Film / Greenpeace

The banner drop is a distinctive part of the Greenpeace repertoire.

The moment of the unfolding is intrinsically dramatic. It is the reveal; when the moral and scientific truth of a situation is unveiled to the world. The wrong is being labelled—not through a written submission, or a social media post, or a statement in a meeting—but in words emblazoned in real physical space, chosen and occupied with precision, for all to see. There is jeopardy and transgression. And there are consequences—for the activists and for Greenpeace, as well as for the target of the communication. One of the reasons the banner remains such an effective tool in our toolbox is because of its undeniable clarity in cutting through, driving change and accountability in a way that few other tactics can. It is naming the wrong: in giant, clear letters.

We’ve hung these massive messages at environmental crime scenes, corporate headquarters, and iconic landmarks; on government buildings, ships and planes—in locations all around the world, for years.

My own memories unfurl even as I write this, but because the campaign to stop Woodside at Scott Reef is so pressing, what immediately springs to mind are two of our banners in that campaign: one on a crane outside their Perth HQ, and another on some of their corroding industrial junk at sea. What about you? Is there a particular banner that you picture when you think of Greenpeace?

The banners can attract global attention, but they have quiet beginnings. Each one is made by hand, often by volunteers. It is the invisible labour behind each spectacular public moment. One of the key pieces of equipment in our workshop at Rainbow Warrior House is the sewing machine. Sometimes our workshop is full of people and noise; at others it is quiet, the only sound being the gentle, purposeful, whir and buzz of a banner being sewn. It is usually our warehouse manager, Kieran Holmes, on the tools, head over the machine, carefully pouring over the raw canvas or tarp as the banner takes shape. Kieran’s one of those people who seems to be able to turn his hand to almost anything, but you wouldn’t know it because he’s old-school modest. In addition to being incredibly skilled, Kieran’s an all-round beaut human to have in the heart of our headquarters; never too busy to take the time to show a newcomer, or curious visitor, around his domain. 

Once the banner is sewn up, the lettering needs to be outlined. This is done on a magnetic wall—a fit-for-purpose feature at Rainbow Warrior House, where the banner is held up with magnets, and the edges of the letters neatly traced from a projection.

Next comes the painting. It usually starts late in the afternoon, sometimes going into evenings and weekends, with volunteers, staff, mates crowded around, brushes in hand. It is a calming meditative feeling of shared purpose, giving each letter its visual heft, the colour building power and presence with each stroke.

Then you stand back, stretch, and look at the message, now ready.

S A V E S C O T T R E E F

Throughout history, every great push for social change has required some form of invisible labour; preparation in the form of quiet things seldom seen, but vital. It is the enabling work of love instantiated in action. And of course, so much of the time it has been women who have done this labour, so that the men could get the chance to make the speeches and stand on the podiums. The inaugural Greenpeace voyage to stop nuclear testing in 1971 had a male-only crew, but wouldn’t have happened without the ideas and work of women behind the scenes.

It is what we do together, after all, that changes the world. Sometimes that work happens on a stage, a ship on the wild seas, or up the side of a building. But mostly, it is the hidden diligence of those who care and contribute to all the enabling work that makes a change once thought impossible, inevitable. It is Kieran at his sewing machine. It was Dorothy Stowe doing the administrative work of the ‘Don’t Make A Wave Committee’ that became Greenpeace.

When we think of social change, it is the sturm and drang that we remember. The drop of the banner, the chant of the crowd, the raising of the new flag. But look behind the curtain, and there’ll be a crew of people who are taking responsibility for the administration, the sewing and the painting, making the food, checking the bus timetables, getting stuff done. And behind them are even more handsinvisibly donating time and trust; the financial, material and expert resources that make it all possible. There’s love, camaraderie and know-how at every stage.

We are social and cooperative creatures by nature. And we human beings have been stitching for millenia, sewing the possibilities of our common future. Political and corporate bullies and algorithmically manipulative platforms would have us forget this, and abandon who we are. But we should be in no doubt that the brighter prospects for ourselves and life on earth continue to be stitched and painted; collaboratively and with love, by the diligent hands of millions of people who care, each day, in every community and city across the world.

With Love,

David


Q & A

I always get great questions when interviewing prospective new team members. One that came up again recently was: “Is Greenpeace actually one organisation?”

Around the world, people know Greenpeace by our one global name, united by a shared mission: securing an Earth capable of nurturing life in all its magnificent diversity, with a particular focus on climate and biodiversity. Behind the scenes, though, we’re organised as a network of 25 legally autonomous national and regional offices, including Greenpeace Australia Pacific, working alongside Greenpeace International.

That structure gives us the best of both worlds: we work together leveraging the power of a global network on the issues that matter most, while each office remains legally independent and deeply connected to the communities, cultures and political realities where we’re embedded. Local knowledge informs global action, and global collaboration strengthens and supports local campaigns.

It’s a model that has enabled Greenpeace to take on some of the world’s biggest challenges for over five decades–while withstanding challenges and attacks from governments and corporations. Global enough to tackle global problems, local enough to understand our communities and the natural places we love.

If you’re curious to learn more, you can read about the Greenpeace Global Network structure here.

Sewing and Painting the Future

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As fires burn and temperatures soar, it’s time to imagine a world beyond GDP

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Steven Stone is acting director of the United Nations Environment Programme’s Office of Science

In 1934, American economist Simon Kuznets presented a paper to Congress advocating for a new way of measuring economic performance.

The United States was reeling from the Great Depression, and Kuznets – a future Novel prize winner – wanted to gauge just how badly the country’s economy had been dented.

His metric, which would come to be known as gross domestic product (GDP), was a breakthrough. But as pioneering as it was, Kuznets saw its limitations.

“The welfare of a nation can scarcely be inferred from a measure of national income,” he wrote in the 1934 paper.

Some nine decades on, we have largely forgotten that message. GDP has become a barometer of economic progress, a kind of one-number-that-rules-them-all upon which national policies turn and governments rise and fall.

With the climate crisis deepening by the day – as evidenced by the heatwaves and wildfires now searing Europe – our attachment to GDP is looking like a problem.

In a single-minded pursuit of GDP growth, humanity is inadvertently feeding several environmental crises that, over the long run, threaten to make most of us poorer, sicker and more miserable. Climate change alone could slice 20 per cent off global GDP by 2100 – a staggering number.

Clear-cutting boosts GDP not wealth

We need to broaden our vision and definition of economic success before it’s too late.

I grew up in the 1970s and 80s surrounded by the mixed hardwood forests of the northeastern United States. For me, the trees were a refuge, a place to run, discover and savor the history and mystery of the land and its people.

Those experiences with my friends were more important than the amount of money in my pocket. And they led to a realization early on in my career as an economist: that wealth is about more than just income.

This is one of GDP’s most significant oversights.

With every forest we clear cut and every ounce of fossil fuel we burn, GDP rises. But through those actions, we are whittling away at the natural world, which supplies us with food, water, medicine, clean air and countless other essentials.

    By focusing only on GDP, we’re ignoring what’s happening to the natural assets on which our prosperity ultimately depends. It’s like we’re driving a car and only looking at the speedometer, not the energy remaining in the battery.

    That is the difference between measuring income versus measuring wealth.

    The answer to this dilemma lies in looking beyond GDP. We must start considering a broader range of indicators when making policy decisions.

    From an environmental perspective, that means measuring and valuing natural assets like forests, water, soil, biodiversity and clean air. By assigning a value to nature, decision-makers can better understand the economic consequences of, say, strip-mining a mountain top or letting plastic waste overwhelm a river.

    There is still some debate over how exactly to do this kind of natural capital accounting. But that’s not a reason to dismiss it, as many have done. It took years of refinement to end up with the GDP formula we have today.

    Costa Rica’s example

    The idea of looking beyond GDP isn’t only a theoretical debate. Countries and communities around the world have started to make economic decisions based on their natural assets. A prime example is Costa Rica, a biodiversity hotspot where a years-long effort to conserve land and seascapes has led to a boom in tourism. That in part helped elevate the country into the club of high-income nations.

    This kind of environmentally focused economic decision making can pay huge dividends. By stabilizing the climate, ending pollution and halting the loss of the natural world, humanity could save millions of lives a year and create US$20 trillion in economic benefits annually by 2070, found the Global Environment Outlook 7, a 2025 report from the United Nations Environment Programme (UNEP). The report was funded by the European Union among others.

    I began my career as an economist before moving to UNEP, which focuses on solving the world’s thorniest environmental problems. During that time, I’ve come to appreciate that “wealth” means more than simply “income.” True prosperity means being able to provide for ourselves now and into the future. Anything short of that is an empty kind of affluence – and ultimately doomed to be short-lived.

    As deadly heat blankets our cities, species slip into extinction and the planet struggles with rising toxicity and pollution, I am convinced that we can do better at measuring what matters. And that means updating and expanding how we measure economic progress.

    The post As fires burn and temperatures soar, it’s time to imagine a world beyond GDP appeared first on Climate Home News.

    As fires burn and temperatures soar, it’s time to imagine a world beyond GDP

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    When taps run dry in the Caribbean, it’s not enough to blame El Niño

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    Amira Odeh Quiñones is a hydrologist and Caribbean organiser for the 350.org climate campaign group

    El Niño, likely to be one of the strongest in modern history, has arrived on Caribbean shores.

    Drought is slowly creeping up on our islands. But unlike the fiery wildfires ravaging parts of Europe, there’s no smoke signalling the damage being done, no sirens to warn of the danger. Only announcements from public health officials to stay indoors and remain hydrated — as if outdoor workers and farming communities have the luxury to heed such advice.

    During El Niño, strong atmospheric winds alter rain patterns and trap heat across the Caribbean. But while we have experienced El Niño many times before, it has become very visible in recent years how climate change is making this natural phenomenon worse.

    Across the Greater Antilles, temperatures are soaring past 38°C (100°F), with real-feel indexes reaching a gruelling 43°C in parts of Puerto Rico where I live. Cuba has it worse. Widespread power outages mean that methods for cooling down are unavailable for most of the day, leaving millions of vulnerable people at risk of heat stroke when temperatures hit 38°C.

    Santa Marta coalition tested as co-chair Colombia turns back to fossil fuels

    During the last strong drought a decade ago, I had water only two days a week in my home. Today, there are many families whose taps are about to run completely dry. Water authorities have already begun strict rationing in some municipalities, with more on the list scheduled for rationing if conditions don’t change.

    Water rationing is far more than an inconvenience; it is an immediate health risk. This means thousands of people need to constantly haul heavy buckets up flights of stairs just so they could bathe, cook, stay hydrated – the basics of survival.

    Heat causes health problems

    Puerto Rico is home to roughly 300,000 elderly residents. Many live alone, isolated and without support. They risk severe physical injury when carrying heavy water containers, and are wont to suffer from silent heat exhaustion in unventilated rooms.

    Furthermore, when water shortages force residents to store water in open household containers, it inadvertently creates breeding grounds for Aedes aegypti mosquitoes. Paired with scorching temperatures that tend to shorten the mosquito breeding cycle, the region is facing explosive outbreaks of dengue fever that endanger our most vulnerable: children and the elderly.

    The economic fallout is equally devastating. Dry fields mean millions of dollars in lost crops, forcing small agricultural businesses to collapse, needing urgent government relief to survive. Extreme fuel shortages have already paralyzed Cuba’s agricultural sector, cutting food output by 60% – the El Niño dry spell threatens to decimate it.

    At sea, warmer ocean waters fuel massive influxes of sargassum seaweed. Rotting sargassum chokes our beaches, destroying the local tourism industry that so many working families rely on. Tangled seaweed also damages nets and boat engines, slashing fish catches and driving up equipment costs for local fishers.

    In the south of Puerto Rico, the coastal town of La Parguera is currently witnessing a historic amount of sargassum on its shores. This has halted most of the boating activity in the area, which is the seaside town’s main tourist draw and economic driver.

    All over the Caribbean, from town halls to local group gatherings, the story I hear is always the same: constant headaches, lost work hours, failing health, and a sense that quality of life is silently being stolen. The compounding effects of heatwaves, drought, and marine destruction are exhausting our people, our islands.

    Climate change to blame

    Climate change makes each El Niño year hotter and more damaging. Higher baseline global temperatures increase the energy and moisture available for extreme weather. Latest projections show that El Niño may push the monthly global average temperature past 2°C of warming for the first time in early 2027. In the Caribbean islands, that will not just be breaking records – it’ll be breaking lives.

    Recently, I had the opportunity to share a panel with climate scientists behind what is known as the field of “attribution science” – or the science that compares today’s climate conditions to what the Earth’s climate would be like without human activity, particularly burning fossil fuels. They’re unequivocal: it’s no longer a question of whether extreme weather is caused by climate change, it’s just a question of how much.

      Attribution science recently got a boost from the U.S.’ top scientific advisory body. The National Academies of Sciences, Engineering and Medicine recognized that researchers’ methods have advanced considerably in recent years, resulting in better assessments on how much extreme weather can be attributed to human-caused climate change. It noted that attribution findings could be relevant in some types of legal cases, including those seeking damages from oil companies for climate impacts.

      This crisis, which is already taking a heavy toll on our communities’ survival, needs real, urgent, and structural action that goes beyond aid. With similar droughts now gripping parts of Asia and Africa, we’re falling into the familiar narrative of treating the looming humanitarian crisis as if no one was to blame, as if it is being caused solely by a natural phenomenon we can’t control.

      It’s not. The world was already on fire before its regular visitor, El Niño, came. While we need humanitarian action, we need climate action too, in order to permanently put out the flames.

      The post When taps run dry in the Caribbean, it’s not enough to blame El Niño appeared first on Climate Home News.

      When taps run dry in the Caribbean, it’s not enough to blame El Niño

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