There is a 70% chance that the 2025-2029 period will be more than 1.5C hotter than pre-industrial times, World Meteorological Organization (WMO) forecasters predicted in a report on Wednesday.
The 1.5C threshold is symbolically important, as all governments agreed in the 2015 Paris climate agreement to try to limit global warming to that level. Since then, diplomats presiding over climate talks have described the temperature goal as the world’s “North Star” and pledged to “keep 1.5 alive”.
The WMO’s forecasters argue that, if average global temperatures in the years from 2025-2029 are more than 1.5C hotter than the pre-industrial period of 1850-1900, this does not necessarily mean that the Paris Agreement goal would be breached. They and scientists working with the Intergovernmental Panel on Climate Change (IPCC) say temperature rises should be measured in 20-year not five-year averages.
Heading for 1.5C
Nonetheless, Adam Scaife, a British physicist who worked on the latest WMO “annual to decadal climate prediction” update, told reporters that keeping warming below 1.5C – even over a longer time-frame – “would require a fortuitous intervention of natural climate variability”.
This could include, he said, a La Niña weather phenomenon or negative Arctic Oscillation leading to Eurasian winter cooling. But “it’s very unlikely that natural variability is going to come to our aid in that particular manner,” he added.
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Scaife’s colleague Leon Hermanson, from the British Met Office, added that a volcanic eruption “would change the forecast quite a lot”. Volcanic eruptions release sulphur dioxide which reflects sunlight from the earth, causing a large but temporary drop in global temperatures.
In the Paris Agreement, all governments signed up to limiting global temperature rise to “well below 2C above pre-industrial levels” and to “pursuing efforts to limit the temperature increase to 1.5C above pre-industrial levels, recognizing that this would signficantly reduce the risks and impacts of climate change”.
Governments never agreed how to define a 1.5C rise in global temperatures, but the influential IPCC scientists said it should be measured as an average over a 20-year period.
Twenty-year average
To assess this with real-world observations would mean waiting ten years from any particular year to gather enough data to know if the average had surpassed 1.5C in that year. So instead the WMO’s forecasters estimate the 20-year average by using observations for the past ten years combined with predictions for the next ten years.
Using this way of calculating the 20-year average for 2024, they found that last year the world was 1.44C hotter than pre-industrial levels – even though 2024 taken alone was 1.55C above pre-industrial levels. “We are still shy of 1.5C in the global average,” Scaife said.
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The WMO report says there is an 80% chance that at least one year between 2025 and 2029 will be warmer than the hottest year on record – currently 2024 – and there is an 86% chance that at least one year will be more than 1.5C above the pre-industrial period.
The forecasters also estimate there is a 1% chance that one year between 2025 and 2029 will be more than 2C above pre-industrial levels. Scaife called this a “shocking possibility”, which had gone from “effectively impossible just a few years ago” to now just “exceptionally unlikely”.
Speaking to reporters online from a “sunny Geneva”, the WMO’s director of climate services Chris Hewitt said it’s “tempting to get fixated” on whether the 1.5C limit has been breached but “every fraction of a degree matters – it’s really important to keep the warming as low as possible”.
He said that the Paris Agreement has reduced the amount by which global temperatures are predicted to rise, and the COP30 climate talks in Brazil in November are “an opportunity for the world to come together” and for “the decision makers and policy makers to take climate action”.
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Scientists predict global warming of more than 1.5C for 2025-2029 period
Climate Change
‘Blue COP31’ set to spotlight need for ocean protections amid record heat
As an extreme El Niño breaks marine temperature records, COP31 is set to boost the profile of the ocean’s role in solving climate change, but finance and clear conservation measures will be needed for it to move the needle, experts said.
The Turkish presidency has announced plans for an Antalya Ocean Declaration that recognises the centrality of the global ocean – the world’s largest carbon sink – in regulating the climate and minimising the now unavoidable overshoot of global temperatures above 1.5C over pre-industrial levels.
Meanwhile, as part of the formal UN negotiations, Australia has announced plans to land a cover decision in Antalya, which, according to veteran former US negotiator Sue Biniaz, would be the only section of the formal negotiations where the role of oceans could be included.
She added that an outcome at COP31 seems likely, given the initiative from both presidencies and a push from over 100 countries – including Brazil, the EU and the African Group of countries – calling for the UN negotiations to deliver a plan for implementing ocean measures.
Governments will arrive in Antalya with a “super El Niño” adding stress to marine ecosystems and expected to continue to intensify until December 2026, with parts of the Pacific averaging almost 30C (86F) – over 3C more than normal – in October, according to monthly EU sea temperature data.
Needs for ocean conservation and funding
While elevating the ocean agenda is “critical”, it must lead to funding for ocean conservation and a clear plan for reaching the global target – set at UN biodiversity talks in 2022 – of protecting 30% of the global ocean by 2030, said Pradeep Singh, senior ocean governance expert at Oceano Azul Foundation.
The ocean is precisely where governments are farthest off track from meeting this target – informally known as the 30×30 goal. Even if countries meet all their nature conservation plans, only about 12% of the global ocean would be protected, the UN says.
“Acknowledgment of marine protected areas and the 30×30 target as climate infrastructures will certainly boost efforts and funding for science and management,” Singh told Climate Home News.
Shamini Selvaratnam, director of international climate and clean energy at Ocean Conservancy, said an ocean commitment that makes a difference in coastal communities “takes funding, local capacity and support that countries can actually access”.
An analysis by climate think tank Zero Carbon Analytics shows that investment in the blue economy – through activities like sustainable fisheries or cleaner shipping – is only at about 2% of the needs, which are estimated at $550 billion per year.

Following-through on commitments
Selvaratnam added that countries must also establish mechanisms to follow through on these measures, which currently only exists in the form of a non-binding dialogue that is not expected to produce any negotiated agreements.
She said that countries at COP31 must find ways for their ocean commitments to inform the next global stocktake, the UN’s five-yearly review of progress on climate action. Some countries – including African countries, Latin American nations, small island states and the European Union – have backed a process that culminates in the next global stocktake.
At climate negotiations, countries are not mandated to include ocean conservation measures in their climate plans. But a group of countries led by France and Brazil is pushing them to do so voluntarily through an initiative called Blue NDC Challenge. Seventeen countries have joined the initiative so far.
In its list of COP31 priorities, the EU has called for the “critical role” of oceans to be recognised, but falls short of calling for any specific actions to feature marine action more prominently in climate plans.
As part of their demands, ocean campaign groups have called for the establishment of an “Antalya Ocean Compact”, a platform where countries can coordinate efforts across different environmental treaties, including the UN climate, biodiversity and high seas negotiations.
Ultimately, Selvaratnam said a strong deal “must accelerate emissions cuts, clean energy, and a transition away from fossil fuels, including offshore oil and gas”.
Ilana Seid, chair of the AOSIS group of small island states and permanent representative of Palau to the UN, said during a press briefing last week that “meaningful progress” on emissions reduction is “the best way” to alleviate stress on the ocean.
The post ‘Blue COP31’ set to spotlight need for ocean protections amid record heat appeared first on Climate Home News.
‘Blue COP31’ set to spotlight need for ocean protections amid record heat
Climate Change
Nepal seeks stronger recognition of mountain issues in UN climate process
In the wake of its recent glacial flooding disaster, Nepal and the kingdom of Bhutan have proposed a new agenda item on mountains and climate change for the COP31 summit which opens on Monday in the Turkish city of Antalya.
In a submission addressed to the COP31 presidency and the head of the UN climate secretariat (UNFCCC), Nepal said the agenda item, entitled “1.5°C Warming in Mountains”, is an effort to strengthen the response of the international community to the climate risks facing the world’s mountain regions.
The item proposes that mountain issues should become a regular part of the formal UN climate change process, with a focus on scientific assessment of the risks associated with warming overshooting 1.5C, an annual high-level dialogue, a dedicated work programme and improved access to climate finance.
Maheshwar Dhakal, chief of the climate change management division of Nepal’s Ministry of Agriculture, Forests and Environment, told Climate Home News that Himalayan countries face similar problems such as collapsing glaciers and flooding from glacial lakes.
“We are trying to bring all Himalayan countries together under this agenda item,” he said.
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At this year’s UN General Assembly, Nepal’s Prime Minister Balendra Shah called for strong global action to ensure climate justice and proposed creating a Himalayan Climate Resilience Mechanism led by India, China and Nepal. It would share satellite data, monitor glacial slopes and lakes, strengthen early warning systems and coordinate cross-border disaster response.
Nepal has experienced significant infrastructure losses and human casualties from flooding every year since 2020. In late August, the collapse of a glacial slope on the border with Tibet caused a torrent of water and debris to course down the Bhote Koshi River, leaving more than 6,000 people dead or missing.
According to a government needs assessment, the disaster caused an estimated $2.7 billion in physical damage and economic losses, while around $4.8 billion will be required for recovery and reconstruction.
More research needed on threats
Although high mountain regions are known to be fragile ecosystems, especially as global warming accelerates glacier melt, the extent of their vulnerability is still not fully understood. When the devastating Bhote Koshi floods hit, it opened the eyes of the world to the risks.
Dhakal said the Bhote Koshi floods “have proved the impacts of climate change in the Himalayan region”, which were linked to rising temperatures by scientists with the World Weather Attribution group. “Therefore, Nepal wants scientific studies, research and political discussions on mountain climate risks to receive greater attention at international climate conferences,” he added.
Nepal has been making efforts on this front since 2009, when it held a cabinet meeting at Kalapatthar near Mount Everest. Since COP28 in Dubai, Nepal has organised high-level events and dialogues on mountain issues at COPs and is co-hosting one at COP31 with Bhutan, Pakistan, Kyrgyzstan and Tajikistan.
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Dhakal said the dialogues held so far have raised awareness, but mountain concerns must become part of the formal UN climate process to unlock climate finance and technical support that can bolster countries’ capacity to tackle climate threats.
If specific indicators and priorities are developed for mountain regions, vulnerable developing countries like Nepal would have better access to finance to help them adapt to the climate warming they have done very little to cause, he added.
More detailed data would enable them to prepare stronger project proposals for international climate funds, including the Green Climate Fund (GCF). In 2025, the GCF backed a project to protect livelihoods from climate-induced flooding in Nepal but it took seven years to get approval.
Sindhu Dhungana, an alternate board member at the GCF, said the problem is becoming more widespread and urgent for the Hindu Kush Himalaya region.
“The economies, cultures and almost everything in Himalayan countries depend on mountains,” he explained. “For us, climate change is mountain change… [it has] affected everything, including the economy and biodiversity.”
Destroyed development projects
Nepal wants the UN climate process to address mountain risks both before and after disasters. Countries need better research, technology, early warning systems and other adaptation measures to protect people and infrastructure. But even when countries take precautions, loss and damage is likely to occur and will require international support to address it.
Nepal has been provisionally allocated $21.6 million from the United Nations’ new Fund for Responding to Loss and Damage (FRLD) to help with the aftermath of the Bhote Koshi disaster, but this is just a fraction of needs and the money will come only months after it made an initial request.
Dhakal pointed to the damage caused by floods to infrastructure built with loans, such as the Melamchi Drinking Water Project, which received $312 million from the Asian Development Bank but was destroyed by a major flood in 2021, shortly after it began operating. The recent Bhote Koshi disaster wiped out a dozen hydropower facilities, as well as solar energy systems.
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Nepal wants international discussions on what should happen when climate-related disasters destroy development projects built using credit, and how the loans should be treated afterwards.
“Climatic disasters wash out… projects, but the burden of loan is still paid by Nepal,” Dhakal said.
For now, it remains unclear whether the opening session of COP31 will consider or adopt the proposed agenda item on mountains and climate change, with consultations on how to respond still underway among governments and the COP31 co-presidencies.
“If countries agree to discuss the proposal and include it in the agenda, that would be another step forward,” Dhakal said. “Further discussions in the coming years could gradually give the mountain agenda a stronger shape.”
The post Nepal seeks stronger recognition of mountain issues in UN climate process appeared first on Climate Home News.
Nepal seeks stronger recognition of mountain issues in UN climate process
Climate Change
European nations signal support for fossil fuel roadmap, says COP30 president
Some governments have backed using Brazil’s voluntary roadmaps on fossil fuels and deforestation to inform the next UN assessment of global climate action, a key process that concludes in 2028, the COP30 presidency told Climate Home News.
Brazil published the roadmaps on transitioning away from fossil fuels and on halting deforestation by 2030 this week, after failing to secure an agreement in Belém to make them part of formal negotiations. The documents set out a menu of policies countries could use to start acting on both issues straight away.
At their launch, Brazilian top climate officials argued the roadmaps could feed into the second stocktake negotiations. Through that process, due to start at this year’s COP, countries are meant to take stock of collective progress on climate action and decide on a plan to ramp up ambition in future policies.
In an interview with Climate Home News in London, COP30 president André Corrêa do Lago said that “some European governments” had signalled their support for the Brazil-led roadmaps to inform the global stocktake negotiations.
“I hope that there will be many other countries that may support this,” he said. “It’s not that you have to take the entire package, because who are we to come up with the solution? But some elements of the roadmaps may be useful.”
Corrêa do Lago cautioned that countries might not publicly come forward to champion the lengthy documents at COP31, because “governments have to read [the roadmaps] and they have to be very careful”.
The fossil fuel roadmap invites countries to draw up their own domestic plans to cut fossil fuel use and production and build clean energy systems by 2028, while putting the main push on cutting coal, oil and gas supply after 2031. The deforestation roadmap urges countries to use existing tools to ramp up finance and forest monitoring, and to tackle harmful trade incentives, among other measures.
Santa Marta coalition could put roadmap to use
As his presidency draws to a close, Corrêa do Lago said Brazil would keep championing the roadmaps but that “others will decide” whether they are taken up in the formal UN negotiations. Those talks, where decisions require consensus among nearly 200 countries, might not be the best venue, he added.
He suggested a potential home for the fossil fuel roadmap, outside of the UN negotiations, could be the Santa Marta process. A group of nearly 60 governments met for the first time in April in Colombia to discuss how to wean their economies off fossil fuels.
Countries in Santa Marta signalled their interest in developing national roadmaps away from fossil fuels, as well as building trade systems that favour renewable energy and reforming global finance to remove barriers to the energy transition.
Corrêa do Lago said the coalition “can have a very important role” in putting the fossil fuel roadmap to use, because its members are already focused on implementation and could use the roadmap and “even perfect it”.
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UK says there’s no time to waste
Speaking alongside the COP30 president at an event in London, UK climate envoy Rachel Kyte said the transition away from fossil fuels was “in danger of becoming just a slogan”. She praised Brazil for “helping us turn it into a planning principle” despite the lack of consensus in the formal UN talks.
But Kyte added that the speed at which countries constrain fossil fuel supply was “critical”. Pointing to soaring oil and gas prices, which have put energy policy at the centre of debate in countries such as the UK, she said: “I don’t think we got time to wait until the early 2030s.”
Brazil is among the countries still planning an expansion of oil and gas exploration, with recently re-elected President Lula da Silva saying recent discoveries near the Amazon river could be “a passport to t


