“Exceptionally heavy” rainfall that led to deadly flooding across southern Africa in recent weeks was made more intense by a combination of climate change and La Niña.
This is according to a rapid attribution study by the World Weather Attribution service.
From late December 2025 to early January, south-eastern Africa was hit hard by intense downpours that resulted in more than a year’s worth of rain falling in some areas in just a few days, according to the study.
This led to severe flooding that left at least 200 people dead, thousands sheltering in temporary accommodation and tens of thousands of hectares of farmland waterlogged.
The analysis finds that periods of intense rainfall over southern Africa have become 40% more severe since pre-industrial times, according to observations.
The authors say they were unable to calculate how much of this increase was driven specifically by climate change, due to limitations in how climate models simulate African rainfall.
However, the study notes that the researchers “have confidence that climate change has increased both the likelihood and the intensity” of the rainfall.
The authors also note that the El Niño-Southern Oscillation phenomenon played a role in the “devastating” flooding, estimating that a La Niña event made the rainfall around five times more likely.
Major disruption
The heavy rainfall started on 26 December last year and intensified from early January. The most-extreme rainfall took place between 10 and 19 January.
The countries most affected by the floods, and analysed by the study, are Eswatini, Mozambique, South Africa and Zimbabwe, with some areas receiving up to 200mm of rain, according to the study authors.
Study author Bernardino Nhantumbo – a researcher at Mozambique’s National Institute of Meteorology – told a press briefing that in just two or three days, some areas recorded the amount of rainfall that is “expected for the whole rainy season”.
The map below shows the areas most affected by intense rainfall over 10-19 January. Darker blue indicates a greater accumulation of rainfall, while light green indicates less rainfall. The pink box shows the study area.
In Mozambique, the floods damaged nearly 5,000km of roads, which has hindered the transport of goods and affected pharmaceutical supply chains, the study says. In Zimbabwe, bridges, roads and infrastructure were “significantly damaged or destroyed”.
More than 75,000 people have been affected by the floods in Mozambique, according to the study. BBC News reported the floods were the worst seen “in a generation” in the country.
Dr Izidine Pinto, a climate scientist from Mozambique currently working at the Royal Netherlands Meteorological Institute, told a press briefing that the country was particularly affected because it “lies downstream of major river basins”.
The flooding prompted Mozambique’s education minister to consider rescheduling the start of the academic year, according to Channel Africa.
In South Africa, the country’s weather service said that areas receiving more than 50mm of rain over 11-13 January were “widespread”, with some places seeing up to 200mm.
South Africa’s Kruger National Park – the largest national park in South Africa – was severely damaged by floods and temporarily closed after several rivers burst their banks, reported TimesLIVE.
The South African news outlet quoted environment minister Willie Aucamp as saying: “The indication is that it will take as long as five years to repair all the bridges and roads and other infrastructure.”
Extreme rainfall
The peak of the rainy season in southern Africa falls between December and February.
To put the extreme rainfall into its historical context and determine how unlikely it was, the authors analysed a timeseries of 10-day maximum rainfall data for the December-February season.
They find that in today’s climate, extreme rainfall events of the scale seen this year in southern Africa would be expected only once every 50 years.
They add that such events have become “significantly more intense”, with observational data showing a 40% increase in rainfall severity since pre-industrial times.
The map below shows accumulated rainfall over Eswatini, Mozambique, South Africa and Zimbabwe over 10-19 January, as a percentage of the average December-February rainfall for the region over 1991-2020.
Green shading indicates that the rainfall in 2026 was higher than in 1991-2020, while brown indicates that it was lower. The red box indicates the study region.
The study explains that in January and February, rainfall patterns in southern Africa are “strongly influenced” by the El Niño-Southern Oscillation (ENSO), a naturally occurring climate phenomenon that affects global temperatures and regional weather patterns.
La Niña is the “cool” phase of ENSO, which typically brings wetter weather to southern Africa.
Pinto told the press briefing that “most past extreme rainfall events [in the region] have occurred during La Niña years”.
The authors estimate that the current weak La Niña event made the extreme rainfall five times more likely and increased the intensity of the event by around 22%.
For attribution studies, which identify the “fingerprint” of human-caused climate change on extreme weather events, scientists typically use climate models to simulate and compare worlds with and without global warming.
However, many models have limitations in their simulations of African rainfall. In this study, the authors found that the models available to them cannot “adequately capture” the influence of ENSO on rainfall in the region.
Study author Prof Fredi Otto, a professor in climate science at the Imperial College London, told a press briefing that these limitations are “well known”. They stem, in part, because the models were “developed outside of Africa” by modellers with different priorities, she explained.
This means that the authors were unable to calculate how much more intense or likely the rainfall event was specifically as a result of human-caused warming.
However, Otto explained that the authors are “very, very confident that climate change did increase the likelihood and intensity of the rainfall” to some extent. This is because the observations all show an increase in rainfall over time and other existing literature supports this assumption, she added.
She told the press briefing that the results of this study were “definitely not 100% satisfactory”, adding that this study will “definitely not be the last of its kind in this region”.
(These findings are yet to be published in a peer-reviewed journal. However, the methods used in the analysis have been published in previous attribution studies.)
Vulnerability
The study warns that the flooding “exposed deep and persistent social vulnerability in the region”.
The authors say that a large proportion of the population – especially in urban areas – live in poor housing with “inadequate planning and insufficient provision of basic services”.
Paola Emerson, head of office at the UN Office for the Coordination of Humanitarian Affairs (OCHA) in Mozambique, told a UN press briefing about the flooding that nearly 90% of people in the country live in traditional adobe houses that “basically melt after a few days’ rains”.
In a WWA press release, study author Nhantumbo explained:
“When 90% of homes are made of sun-dried earth, they simply cannot withstand this much rain. The structural collapse of entire villages is a stark reminder that our communities and infrastructure are now being tested by weather they are just not designed to endure.”
Study author Renate Meyer – an adviser with the conflict and climate team at the Red Cross Red Crescent Centre – said in a WWA press briefing that the “recurring frequency of hazards such as drought and extreme rainfall have had a significant impact on communities experiencing, amongst others, displacement, health challenges, socioeconomic loss and psychological distress”.
For example, the World Health Organization (WHO) said in a press release that the event had disrupted access to health services and increased the risks of water- and mosquito-borne diseases, as well as respiratory infections across southern Africa.
Meyer explained that the countries included in this study have “substantial populations living below or near the poverty line with limited savings, low insurance cover and a high dependence on climate sensitive livelihoods”.
The post Climate change and La Niña made ‘devastating’ southern African floods more intense appeared first on Carbon Brief.
Climate change and La Niña made ‘devastating’ southern African floods more intense
Climate Change
Albanese rolls out the red carpet to data centre ‘energy vampires’, delays meaningful legislation
SYDNEY, Wednesday 15 July 2026 — Greenpeace Australia Pacific has called for an urgent pause on data centre approvals, after Anthony Albanese revealed the government’s AI legislation won’t be introduced until 2027.
The PM outlined plans for “greater clarity and speed for approvals” for data centre proponents, but, despite acknowledging the severe strain these facilities place on Australia’s land, water, and clean energy resources, will not bring legislation to Parliament until early next year.
Last month, Greenpeace called on the Federal Government to urgently implement a moratorium on the construction and approval of new data centres until appropriate regulations and safeguards are in place to protect the climate and communities.
Joe Rafalowicz, Head of Climate and Energy at Greenpeace Australia Pacific, said:
“The PM’s speech today shows that this government is kicking the can down the road, while Australians right around the country are calling for urgent regulations on AI data centres that are already being built in their backyard. We shouldn’t be talking about ‘faster decision making’ when there are no laws in place to protect our communities from this dangerous industry.
“We urgently need a moratorium on AI data centre approvals until there are binding rules in place to protect our communities, our climate and our environment. The Prime Minister is rolling out the red carpet for these water-guzzling energy vampires, with no plans to regulate them until at least 2027 — that is a betrayal of Australian communities and our national interest.
“Big tech companies are looking to make Australia their second home, but in the US, AI data centres are wreaking havoc on people’s health, drinking water and air by running their data centres on gas. They’ve set their own house on fire, and we shouldn’t be opening the door to let them do that here.
“No new data centres should be approved until there are clearly defined, enforceable regulations in place, including requiring 100% additional renewable energy, that protect people, our climate and our environment – and absolutely no new fossil fuels like gas.”
-ENDS-
Albanese rolls out the red carpet to data centre ‘energy vampires’, delays meaningful legislation
The UN body that regulates mining in international waters has defended its authority over ocean governance after two subsidiaries of deep-sea mining firm The Metals Company (TMC) launched legal action to halt an investigation into their conduct.
Speaking at the International Seabed Authority’s (ISA) annual meeting in Kingston on Monday, secretary-general Leticia Carvalho said the regulator’s role “matters more than ever” as governments grapple with growing pressure to exploit the deep seabed for minerals needed for the energy transition.
“The deep seabed belongs to no single country and no corporation; it belongs to all of us,” Carvalho said, describing its resources as “the common heritage of humankind”.
“If we lose sight of this,” she added, “we risk repeating on the ocean floor the same injustices and destruction we still strive to remedy on land.”
The conflict stems from TMC’s attempt to bypass the UN process by applying for US-sponsored ocean mining permits offered last year by the Trump administration. The Canadian firm aims to become the first company to mine the seabed for minerals like nickel, rare earths and manganese used in the production of both clean energy technologies and military equipment.
Several governments, including China, condemned the move as a “violation of international law”. In response, ISA member states agreed to open an inquiry into its licence-holders – among them two of TMC’s subsidiaries – to make sure they have complied with international law. If they are ultimately found to have breached those obligations, their exploration contracts could be revoked.
In June, the two TMC subsidiaries – Tonga Offshore Mining Ltd (TOML) and Nauru Ocean Resources Inc (NORI) – filed claims against the ISA at the International Tribunal for the Law of the Sea (ITLOS), asking the court to suspend the inquiry while the case proceeds. The companies argue they are being targeted “without lawful procedural basis”, “in breach of due process”, and without “good faith”.
Environmental groups have accused The Metals Company of using legal tactics to block the investigation into its subsidiaries.
“We find ourselves in this Orwellian situation where these companies are trying to effectively get an injunction against the ISA from continuing its inquiry,” said Louisa Casson, who leads Greenpeace’s global campaign against deep-sea mining.
“The stakes are so high and that’s why we’re seeing this pretty extraordinary move to try to get an injunction against the ISA,” she added.
-
Trump throws lifeline to Canadian deep-sea miner, setting scene for international clash
US president’s executive order looks like a victory for Vancouver-based The Metals Company (TMC) and other industry advocates, but fierce environmental and international opposition still stands in the way of ocean floor mining -
UK government faces legal challenge over deep sea mining permits to “opaque” firm
Greenpeace says UK may have acted unlawfully by transferring deep-sea mining licences to firm with US ties -
Loss and damage fund delays first project approvals as needs dwarf resources
The new Fund for Responding to Loss and Damage faces an overwhelming number of initial requests for its limited pot of money and board members decided to take more time to choose which to back first
Mining the deep ocean floor
The ISA has been negotiating a mining code for the deep ocean floor for over 12 years without success. Nearly 40 governments, including the UK, France and Germany, have called for a moratorium or precautionary pause on deep-sea mining until there is sufficient scientific evidence that it can proceed without causing serious harm to marine ecosystems.
Rather than wait for the UN process, industry frontrunner, The Metals Company, decided to apply for US permits offered by the Trump administration last year. In May, the US National Oceanic and Atmospheric Administration (NOAA) certified TMC’s application to explore 120,000 square kilometers of sea floor.
The firm wants to mine an area in the Pacific known as the Clarion-Clipperton Zone, which holds critical minerals inside potato-sized rocks found in the deep ocean floor known as polymetallic nodules. The minerals like manganese, nickel and rare earths are used in clean energy technologies like batteries and wind turbines.
But the area is also a little-understood ecosystem inhabited by thousands of unnamed species. The International Union for Conservation of Nature (IUCN), the world’s largest environmental network, says mining this area would threaten the existence of over half of all molluscs reliant on deep-sea vents.
Governments launch inquiry
Seeking to discourage companies from bypassing the UN process, the ISA’s member states unanimously agreed to open an inquiry into whether holders of its exploration licences complied with their contractual obligations under the UN Convention on the Law of the Sea (UNCLOS).
“The stage we’re at now is countries grappling with what they can do about this. What tools do they have to constrain this pathway that would go against international law,” Casson said.
Both NORI and TOML continue to hold ISA exploration contracts in the Clarion-Clipperton Zone. NORI’s license, however, expires later this month on July 21st and is up for review.
The inquiry is currently ongoing, but Casson said that if governments decide to cancel NORI’s license, other firms could apply for the ISA permit and compete for mining rights in the area.
“If that happens, it could really put into jeopardy TMC USA’s application (for US permits) because then suddenly that area could be open for a competing claim,” she explained. “At the moment, TMC is trying to kind of play both sides and shore up the area so that there will be no competition.”
Deep-sea mining firms push back
The cases before ITLOS are the first contentious disputes over deep-sea mining to reach the court designed for maritime disputes and the first brought directly by private contractors against the ISA. Among the companies’ legal advisers is former ISA secretary-general Michael Lodge.
Both NORI and TOML claimed that, unless the inquiry is suspended, there is a “real
and imminent risk of prejudice” that “may have significant legal and practical consequences” for
their activities.
The claim was backed by the Pacific island nation of Nauru, which has sponsored TMC’s push to mine the Clarion-Clipperton Zone and would benefit from the economic activity. The country raised “concerns on the adherence of due process with respect to the treatment of NORI”.
The mining companies allege that the ISA has singled them out among other applicants by requesting additional documentation, and that the UN auditors did not give them an opportunity to “meaningfully respond” to their concerns.
The ISA rejected those allegations as “wholly unsupported assertions”. It added that, given TMC’s application for US mining permits, it had done “what any reasonable regulator would do”: with the unanimous support of member states, it opened an inquiry simply to establish the facts.
Delay tactics
A decision from the maritime court is now expected by July 18, which has added to a “climate of significant regulatory uncertainty”, according to global law firm HSF Kramer.
As ISA countries meet in Kingston this week, the court’s president asked them “not to act in any way that could hinder any order” the court may make.
At the hearing representing the ISA, renowned human rights lawyer Philippe Sands said the deep-sea mining firms were engaging in “strategic litigation” meant to delay the inquiry and send the ISA into a years-long legal process.
“It’s a delaying tactic, and nothing would make them happier than for you to kick this into the long grass for two years while you sort out the merits. That is what they want this Tribunal, the Chamber, to do. You are being instrumentalized in this process,” Sands told the judges.
The post UN seabed regulator defends authority as mining firms seek to halt inquiry appeared first on Climate Home News.
UN seabed regulator defends authority as mining firms seek to halt inquiry
The UK’s incoming prime minister Andy Burnham has remained tight-lipped on his views on climate change during his leadership campaign.
When asked his views on reversing Labour’s manifesto pledge to stop new North Sea drilling in June – a move that the oil-and-gas industry and right-wing media have pushed for in recent months – he said he had “something of an open mind” on the issue.
But a trawl of Burnham’s past comments about climate change, net-zero and fossil fuels reveals a different picture.
Just a year ago in June 2025, Burnham, while mayor of Greater Manchester, gave his support to the fossil fuel treaty – a proposed international pact on phasing out coal, oil and gas – calling it a “lifeline” that “all governments” should join.
In a video message endorsing the treaty, he also said that “there should be no turning away from net-zero”.
During his last bid to be Labour leader in 2015, he used similar language, saying:
“Labour under my leadership will never turn our back on either our duty to tackle climate change or the prospects offered by the green economy.”
Burnham has spoken about the threat of climate change since at least 2008, noting in 2021 that accelerated action could “create thousands of good jobs”, but also warning that net-zero risked becoming the “next Brexit”.
Burnham is yet to appoint his cabinet, but there is much speculation that he will select current net-zero secretary Ed Miliband as his chancellor – with their ally Miatta Fahnbulleh having a “strong chance” of taking Miliband’s former position.
Below, Carbon Brief recounts 28 things that Burnham has said about climate change, net-zero, fossil fuels, energy and transport.
Climate change
“Tackling climate change isn’t just about protecting the planet – it’s a powerful opportunity to build a fairer, greener future for our communities and businesses.”
Calling for local councils to be given more power and money for climate action, 29 November 2025
“There is little doubt that Greater Manchester’s biodiversity has taken a hit over the years, with habitats being lost, destroyed and becoming less diverse due to the impact of development, climate change, pollution and invasive species…We are committed to delivering a city-region for all residents to enjoy – a fairer, greener and more prosperous place for everyone.”
Statement after Greater Manchester declared a “biodiversity emergency”, 25 March 2022
“Over the next decade, if we accelerate our response to the climate crisis, we can create thousands of good jobs, improve homes, overhaul our transport system and make [Manchester] an even better place to live.”
Greater Manchester Green Summit, 18 October 2021
“The environment has never been higher on the national and international agenda.”
Statement after visiting a peat bog restoration project in England, 9 January 2020
“I think climate change [action] will be driven more quickly from the bottom up, if I’m honest. It’s the will of evolution if you wait for the government to act…When governments aren’t listening you get out and get your voice heard…so I think [climate protesters] deserve our encouragement, not our criticism.”
Speaking to Manchester Evening News at a student climate protest in Manchester, 24 May 2019
“Labour under my leadership will never turn our back on either our duty to tackle climate change or the prospects offered by the green economy.”
Labour leadership candidate speech, 15 July 2015
“Climate change can seem a distant, impersonal threat – in fact the associated costs to health are a very real and present danger…We need well-designed climate change policies that drive health benefits.”
Speaking to the Guardian about a study on climate and health, 25 November 2009
“The Stern report on the economics of climate change has changed the debate, in this country and around the world. It made it clear that the people who could suffer most from a failure to tackle climate change, or from a lack of ambition in our approach to it, are those living in the developing countries. They are the most vulnerable…[and] Stern said that the cost of not acting would be large. That is why the government took various measures in the recent spending review to ensure that we are prepared to face the challenges posed by climate change.”
Speaking in the UK parliament on the economic impacts of climate change on his final day as chief secretary to the Treasury, 24 January 2008
Net-zero
“There should be no turning away from net-zero.”
Speaking after giving his support to the fossil fuel treaty – a proposed global pact to introduce laws to phase out coal, oil and gas – on behalf of Manchester, 6 June 2025
“An opportunity is opening up for Britain as other countries move away from net-zero. We should seize that…We can make Britain a green leader. This is not the time to tiptoe, it is the time to commit to this path.”
Speaking at Innovation Zero World Congress in London, 29 April 2025
“[We] need a government that fully buys into the 2038 vision because the UK will not get to 2050 unless places like Greater Manchester are freed up to go faster – and we’re ready to go faster.”
Speaking about Greater Manchester’s aim to reach net-zero by 2038, 19 October 2022
“In Greater Manchester we have plans to build 30,000 net-zero social rented homes because we recognise that a successful city region needs good quality, affordable accommodation for everyone.”
Speech on the future of cities, 24 June 2022
“By building a broad consensus behind the drive to net-zero, we can ensure that the transition is a fair one that delivers social justice as well as climate justice. This is an opportunity for all of us to show how cutting carbon emissions in our cities can make a real difference to our communities – away from the abstractions and rooted in the real world.”
Panel discussion in Glasgow during the COP26 climate summit, 12 November 2021
“To the extent that people have picked up anything from COP26, it’s a sense that the drive to net-zero will mean cost and inconvenience for ordinary people and offsetting for the wealthy and entitled. All of a sudden, you can feel how net-zero could become the new Brexit – a debate that gets very divided on class grounds…This has got to be a wake-up call. We cannot let this happen. We need to act now to build a broad social consensus behind the drive to net-zero. How to do that? It starts with taking control of the climate narrative from those steering it in the wrong direction and turning it around…We must show how, if done in the right way, the drive to net-zero is actually an opportunity to reduce the cost of living; to make people’s lives better and society fairer.”
Writing for the London Standard, 5 November 2021
“The drive to net-zero is a chance to re-industrialise the north of England, this time in a clean way. Create really good jobs, future-facing jobs for people, better public transport, improve people’s homes…If we go quickly towards net-zero, it’s the quickest way to level up the country.”
ITV interview at COP26, 1 November 2021
“If we really embrace the drive to net-zero, that is the route to level up the country…But it needs substantial investment, upfront, now, of the kind that Rachel Reeves, shadow chancellor [and chancellor under Keir Starmer’s government], has been talking about. We need long-term predictable funding.”
Interview with GB News at COP26, 1 November 2021
“I would have preferred to hear slightly less about carbonated wine and much more about a decarbonised economy.”
Referencing a UK budget, which included tax cuts for sparkling wine and other drinks, 28 October 2021
“Decarbonising is not just about lowering costs on to people. It’s the route to get better, cheaper public transport. It’s the route to getting homes that are cheap to run. It’s actually the way we can create thousands of good jobs for the people who live in Greater Manchester. This is the route to levelling up the country by going further and faster on decarbonisation.”
Speaking to Manchester Confidential, 20 October 2021
“[I am] asking people to stop seeing the environmental agenda as a cost and a burden agenda. I think this is a barrier that we’ve got to get over. Already in the media interviews I’ve done today, people are saying ‘can you afford it?’, ‘can it be achievable when times are tough?’.
“My answer to that is, at some point in the 21st century, all homes will be zero-carbon. At some point in this century, all buildings of any kind will be zero-carbon…All cars will be zero-carbon, all public transport will be zero-carbon…The question is: when? And surely the places that embrace those things first are putting themselves in a position of economic strength when it comes to facing up to the future. Rather than seeing the whole agenda as a burden, we’ve got to see it for the benefits that it can bring.
“There may be a greater upfront cost in a zero-carbon home, but let’s stop thinking, as we tend to do in Britain, of the short-term, the short-termist approach to life. Surely let’s start talking to the public about the lifetime cost.”
Greater Manchester Green Summit, 21 March 2018
Fossil fuels
“I’ve got something of an open mind, you know. I don’t have a sort of fixed position.”
Speaking on the issue of new North Sea oil and gas in a New Statesman interview, 3 June 2026
“We would fight this in GM [Greater Manchester]…Communities across the north would face all the danger and disruption while big oil and gas walk away with all the profits.”
In response to Reform’s call for fracking, on X, 25 August 2025
“I am proud to endorse the fossil-fuel treaty proposal today on behalf of Greater Manchester. It’s not just a plan – it’s a lifeline. It’s a call to end coal, oil and gas, hold polluters accountable…I urge all governments, nationals and subnationals to join this fight.”
Statement upon endorsing the fossil-fuel treaty, 5 June 2025
“Fracking is the past, it is not the future.”
Speech at London climate protest, 20 September 2019
“I have called for a moratorium on fracking. Far too many potential risks and unanswered questions.”
On X, 22 June 2015
Energy and transport
“What I would do, if successful, is lay out a plan for more public control over water, energy, transport, so that over the period we can get those bills down, fares down, and give people and give businesses breathing space.”
LBC interview, 2 July 2026
“I am all in favour of tough decisions at a national level. I don’t believe there should be a third runway at Heathrow, for instance. But I think those are decisions for national government.”
Guardian interview, 13 June 2019
“There is a debate to be had about aviation, isn’t there? There are changing public attitudes about aviation. Rather than just saying no to people flying, don’t we need to accelerate research into low and zero-carbon forms of aviation?”
Guardian interview, 13 June 2019
“Today, I stand alongside the mayors of some of the greatest cities in the world. I’m committed to a cleaner, greener and healthier future for Greater Manchester. Around a third of greenhouse gas emissions in our city-region come from transport.”
When signing the C40 Fossil-Fuel-Free Streets Declaration, which includes support for zero-emissions vehicles and walking and cycling, on behalf of Manchester, 14 September 2018
The post 28 quotes from next UK leader Andy Burnham on climate, net-zero and fossil fuels appeared first on Carbon Brief.
28 quotes from next UK leader Andy Burnham on climate, net-zero and fossil fuels
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