Scientists have found that the devastating floods triggered by intense rainfall in Southern Africa in recent weeks were made worse by climate change and have exposed deep social vulnerability, causing a disaster described as “a textbook case of climate injustice”.
The scientists working with the World Weather Attribution (WWA) group said extreme 10-day rainfall events in the region are now about 40% more intense than in pre-industrial times, driven primarily by human-induced climate change – and on this occasion amplified by a weak La Niña pattern. While such rainfall remains relatively rare, the analysis shows it would have been far less severe in a cooler climate.
With more than 100 deaths recorded in Mozambique alone since the rains began in late December, the scientists said the impacts have been compounded by rapid urbanisation, weak planning and high levels of informal settlements, which left communities highly exposed and led to widespread collapses of housing and displacement of families.
Renate Meyer, Southern Africa focal point for the Red Cross Red Crescent Climate Centre, said that when studying extreme events, the WWA group now also looks at people’s vulnerability and exposure, to understand the context and the drivers of risk beyond meteorological conditions.
“Mozambique and parts of South Africa, Eswatini and Zimbabwe are no stranger to floods, but the recurring frequency of the hazards such as drought and intense rainfall have had a significant impact on communities experiencing, amongst others, displacement, health challenges, socio-economic loss and psychological distress,” Meyer told the press launch of the WWA study.
Friederike Otto, professor of climate science at Imperial College London’s Centre for Environmental Policy, said the Southern Africa floods are “a textbook case of climate injustice” because the people of the affected countries have not contributed to climate change, nor are they profiting from using or selling fossil fuels, yet they are the ones losing their lives, homes and livelihoods.
Such disasters can no longer be treated as “acts of God” when they are the direct result of a system built on exploitation and a global failure to phase out fossil fuels, she argued. “We have the know-how and tools to stop this from getting worse,” she added. “We now need the political will that prioritises everyone instead of just the very rich and GDP [gross domestic product]. ”
Climate and social vulnerabilities collide
Separately on Thursday, the charity Water Aid said that in Mozambique and Malawi, more than 800,000 people have been affected, with thousands living in temporary accommodation and shelters, while the number of deaths and people missing continues to rise.
In a statement launching an emergency funding appeal, Water Aid’s Southern Africa director Robert Kampala said the floods are some of the worst the region has ever seen. “This is rapidly becoming a public health crisis,” he added, noting that water sources are become contaminated with floodwater and people are forced to live in cramped shelters, raising the threat of cholera outbreaks and other diseases.
Meyer of the Red Cross said health risks in the region have soared during the floods, with more than 11,500 pregnant women and about 169,000 women of reproductive age among those hit hardest. Many are sheltering in overcrowded conditions with limited access to sexual and reproductive health services, exposing them to stress and increased risk of preterm birth and low birth weight, she told journalists.
Flood risk is higher for people with disabilities when emergency shelters lack ramps and adapted sanitation and support services. “These structural exclusions force people to remain in high-risk locations, converting exposure into avoidable loss,” Meyer said.
Children are also vulnerable, she noted, with around 40% of children in Mozambique currently experiencing malnutrition. “These children are repeatedly exposed to droughts, floods [and] cyclones, with insufficient time or resources to recover nutritionally or physiologically between shocks – and this erodes the possibility of building resilience,” she added.
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Bernardino Nhantumbo, climate researcher with Mozambique’s INAM National Institute of Meteorology in Maputo, said the flooding had caused a “collision” between a climate that grows more dangerous by the day and the region’s deep-rooted social vulnerabilities.
“When 90% of homes are made of sun-dried earth, they simply cannot withstand this much rain,” he said. “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.”
Growing needs, shrinking aid
Field reports from aid workers on the ground echo the WWA’s scientific findings. ActionAid Mozambique has said that humanitarian funding cuts and the climate crisis are putting thousands at risk after the dramatic rains and flooding in central and southern parts of the country.
With many people already living in poverty and informal housing, the floods have devastated lives and livelihoods, the aid organisation said. Elsa Manhique, a resident of the Buna area in Manhiça district, told ActionAid she had to “flee with nothing”. “Everything I had was taken by the water. The houses collapsed. We left without documents, without clothes, without anything,” she said.
Marcia Cossa, ActionAid Mozambique’s acting head, said the country is one of the world’s most climate-vulnerable nations, facing cyclones, floods and droughts that are intensifying due to climate change. “As needs grow, international aid and cooperation are shrinking, and that rollback is costing lives,” she added.
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Save the Children, an international aid charity, reported that thousands of children are at risk, with some families rescued by boat from submerged areas. Temporary shelters are overstretched, with some housing both people and livestock, creating serious health and hygiene concerns, the agency warned.
Ilaria Manunza, the charity’s country director, said the floods are unfolding amid a wider humanitarian emergency, pushing already exhausted communities further into crisis. With continued heavy rains forecast and emergency response capacity severely strained, families are being uprooted and children are at extreme risk, she said, calling for urgent support to prevent the emergency escalating further.
The WWA study said strengthening resilience against floods will require full implementation of existing policies and better coordination across river basins. It recommended investing in infrastructure and early warning systems, and building community capacity to prepare for, respond to, and recover from flooding.
The post Southern Africa floods intensified by warming highlight climate injustice, scientists say appeared first on Climate Home News.
Southern Africa floods intensified by warming highlight climate injustice, scientists say
Climate Change
In a Years-Long Fight, the Illinois Environmental Justice Movement Gets a Win
A bill, newly passed by legislators, will expand the state’s capacity to enforce limits on health-harming emissions in overburdened communities.
After years of fighting to curb toxic pollution in communities of color, Illinois activists are celebrating a step forward.
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Climate Change
Appeals Court Affirms Dismissal of Youth Climate Case Against Trump
The lead attorney for the 22 plaintiffs said the court has “slammed the courthouse doors on children fighting for their lives.”
A federal appeals court has sided with the Trump administration and 19 Republican-led states in a constitutional challenge to several of President Donald Trump’s executive orders designed to boost fossil fuels, concluding that the youth plaintiffs failed to bring a viable case against the federal government. In affirming a lower court’s dismissal of the lawsuit, called Lighthiser v. Trump, the appeals court said that it was not the role of the judiciary to supervise government energy policy.
Appeals Court Affirms Dismissal of Youth Climate Case Against Trump
Climate Change
Investor climate group closes down, blaming “limits” of shareholder activism
In 2021, amidst a wave of corporate net-zero targets, a campaign group called Investors for Paris Compliance was set up in British Columbia, aiming to use investor pressure to hold Canadian companies to account on their climate promises.
In the five years since, the group has notched up several wins: pressuring National Bank into providing $20 billion of finance to renewable energy, getting Royal Bank of Canada to improve its green finance labels and persuading 20-25% of investors to regularly back climate proposals at annual general meetings (AGMs) for shareholders.
But last month, the group’s then executive director Matt Price put out a statement saying it was shutting down. Despite some progress, Price explained, his organisation had concluded that “investor accountability has reached its limits”.
Companies and their investors often understand that climate change threatens the economic system, Price said. But, he added, they do not respond adequately because they are worried that, if they do, their competitors will not put in as much effort and could therefore gain a financial advantage.
This “tragedy of the commons” situation cannot be fixed by shareholder advocacy, Price said, but instead needs litigation, regulatory action and accountability mechanisms. “Some of our team will take those things on in new initiatives,” he said.
Price’s words echo the findings of a London School of Economics (LSE) report published last month, based on workshops with asset owners and managers in New York, Amsterdam, London and Singapore.
Government policy key
The LSE report noted that “action by investors on climate change is severely constrained by their duties, the limited tools at their disposal and the pathways of technology development”. To be effective, pressure from climate-conscious investors must be coupled with government policy that incentivises green investment and technological innovation, the authors concluded.
An investigation by the Guardian recently found that, despite overwhelming shareholder support for its climate action plan, Australian mining company BHP has carried on buying polluting diesel trucks instead of electric ones. The Australian government subsidises diesel, saving BHP hundreds of millions of dollars a year.
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Lindsey Stewart, director of institutional insights for investment research firm Morningstar, told Climate Home News that investor activism does work but it “doesn’t do everything that people expected it to do towards the beginning of the 2020s”.
“There is a limit to what can be achieved by minority shareholders exercising their votes and engaging with companies. Quite a lot, it does seem, is reliant on the legal and regulatory framework,” he said, adding that the closure of Investors for Paris Compliance shows this “realisation is sinking in a lot more than perhaps it was in 2020, 2021, 2022”.
Decline of investor activism
Stewart said that in the early 2020s, investor activists were pushing companies for “things that were sort of already on the regulatory conveyor belt anyway”, like companies setting targets for their operational (Scope 1 and 2) emissions, disclosing their carbon footprints, and assessing their exposure to risk from climate change.
With this low-hanging fruit picked, green-minded investors have moved on to make demands that are more controversial and have received less support from other investors, he said. He gave examples of just transition reporting, green capital expenditure financing ratios for banks and disclosing emissions from the use of products a company sells, known as Scope 3 emissions.
On top of this, Stewart said, there has been pressure from the “right-wing political establishment in the US” against investors taking climate change into consideration. BlackRock, which manages $9.5 trillion of assets, has walked back its climate commitments after pressure from US Republicans.
More fundamentally, Stewart described the idea that fossil fuel majors would dismantle their oil and gas business and transform into renewables companies as a “pipe dream on the part of environmentalists”. “Why would they have the skill or capability, or even the stakeholder backing, to completely transform a business of that size?” he asked.
Shareholder activism is only possible at privately owned and listed companies, while most investment in oil and gas is now coming from state-owned companies, like Saudi Arabia’s Aramco. In 2025, less than a quarter of investment was from oil majors like BP and Shell.
Business backlash shows power
Yet despite the uphill climb, Mark van Baal defends shareholder activism. He runs an Amsterdam-based campaign group called Follow This, which has tried to get investors to vote for pro-climate resolutions at the AGMs of oil and gas multinationals.
He accepts that success peaked around 2021, but says the effort oil and gas firms are now putting into winning over shareholders and discouraging pro-climate resolutions – which he characterised as “the Empire Strikes Back” – shows the power of shareholder activism, which was previously underestimated.

In January 2024, ExxonMobil sued Follow This, aiming to block the group’s climate resolution. Fearing the case would end up in the Supreme Court, where conservative judges could set an anti-climate precedent, Follow This withdrew the resolution.
But, said van Baal, although the legal battle created a “chilling effect among investors”, it is a “proof point that shareholder pressure works and that they’re really afraid of the shareholders”.
Vote, don’t sell
Stewart and van Baal both agreed that selling, or threatening to sell off shares is not an effective way to change a company’s behaviour.
It allows less climate-conscious investors to buy the shares, they said, adding that there is no evidence that threats to sell shares and therefore lower the valuation over climate concerns have influenced company management.
Van Baal said the share price is set by short-term traders, not long-term shareholders like the pension funds he works with.
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Nonetheless, investors’ engagement should be forceful, van Baal insisted – and not just within their comfort zone of talking to management about sustainability behind closed doors without voting for it at AGMs. “Shareholder democracy is the only democracy where voting is called escalation,” he said.
The Follow This website says that only investors can stop fossil fuel companies destroying the planet. “Marches didn’t change their minds. Lawsuits didn’t stop them. But shareholders can,” it trumpets.
But van Baal told Climate Home News this wording is “too strong” and may have to be revised, adding that shareholder activism just “fits me more than gluing myself to roads” and is a tactic he “stumbled on” 11 years ago.
Legal, political and investor activism can reinforce each other, he added. When Friends of the Earth sued Shell alleging inadequate climate action, for example, the green group’s lawyers cited the company’s rejection of a Follow This resolution as evidence. “The pressure needs to come from all sides,” van Baal said.
The post Investor climate group closes down, blaming “limits” of shareholder activism appeared first on Climate Home News.
Investor climate group closes down, blaming “limits” of shareholder activism
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