Following years of violence surrounding one of Latin America’s largest wind energy projects, local residents in southern Oaxaca state are cautiously optimistic that Mexico’s incoming president understands their anger over what they call poor consultations and environmental damage.
Claudia Sheinbaum will be sworn in as Mexico’s first female president on October 1 with a broad electoral mandate. Before entering politics, she was a scientist studying renewable energy, including the ongoing conflict over wind farms on the Isthmus of Tehuantepec. The tensions have spawned deadly violence, and lawsuits from Oaxaca City to Paris.
One of Mexico’s windiest areas, energy companies have flocked to the strip of land between the Gulf of Mexico and the Pacific Ocean since 2006, making it one of the most important locations for renewable energy in the world’s 13th largest country.
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Supporters say projects like this are crucial for transitioning Mexico away from fossil fuels and creating green jobs based on renewable energy. Opponents are concerned about wind turbines harming migratory birds, land access, revenue sharing and – most importantly – problems related to Indigenous community consultations over the investments.
Bloody conflict
In several cases, anger over the projects has turned bloody, including at least 15 killed in a dispute over the wind farms in 2020.
Today, more than 2,000 turbines cover the land, according to data from Amnesty International, leading to “dispossession” and violations of the “collective rights of Indigenous communities”, the rights charity says. Hundreds of millions of dollars have been invested in the projects, mostly by European energy companies.

Anti-wind farm activist Guadalupe Ramirez poses for a picture inside her home in Union Hidalgo, Mexico. (Leon Pineda/Climate Home)
Anti-wind farm activist Guadalupe Ramirez poses for a picture inside her home in Union Hidalgo, Mexico. (Leon Pineda/Climate Home)Guadalupe Ramirez is an Indigenous Zapotec farmer who grows pumpkins and corn on a communal plot in the town of Union Hidalgo, a hub for wind energy. She told Climate Home that “at first, they (wind companies) said they would just take a little piece of the land but they ended up destroying a big piece”.
“The companies started dividing families,” said Ramirez, who also complained about local environmental disruption from the projects. “We were very mad about this. I have hope with Sheinbaum.”
Ramirez expects the new president and former Mexico City mayor may have some unique insights on the problems her community faces. The academic turned politician co-authored a study analysing the unrest over wind projects in Oaxaca state.
“Although wind energy has numerous benefits, [the] concerns of the local people have to be taken seriously,” Sheinbaum wrote in 2016. “Far from the old-fashioned thinking of looking at social acceptance of renewable technologies as a NIMBY (not in my backyard) problem… information, consultation, and participation are key elements to the success and acceptance of wind farm projects.”

Sheinbaum celebrates her election victory in Mexico City on June 3, 2024. (REUTERS/Raquel Cunha TPX)
Those are exactly the elements Ramírez and many of her neighbors say were missing when they were first approached by energy companies back in 2009.
From there, the conflict escalated, said Carlos Lopez, who has experienced it firsthand. As an activist and community journalist in Union Hidalgo, he said he was threatened by masked men toting automatic weapons. He suspects they were hired by landowners or corrupt local politicians who wanted windmills erected in the area in order to receive rent from companies.
“They were killing people here,” Lopez told Climate Home, during an interview in a crumbling building which had been a community radio hub in Union Hidalgo as it underwent renovations.
In 2013, for instance, he said local fishermen and hunters were working in an area near Union Hidalgo coveted by wind investors, when they were accosted by masked men with heavy weapons. The fishermen then fled to the radio station, so Lopez could broadcast what was happening.
Deadly violence
“They [investors and their supporters in government] don’t respect the vision and culture of the original peoples of the Isthmus and want to push through these megaprojects,” said Lopez, sitting on a plastic chair next to pictures of Che Guevara and posters for protest movements.

Posters are displayed inside a community radio station in Union Hidalgo (Picture: Leon Pineda)
Residents later set up barricades around six areas they considered sacred sites to stop encroachment by companies, he added, as threats continued and violence simmered.
In 2020, for instance, at least 15 people were killed in San Mateo del Mar, a coastal community in Oaxaca and a hotbed of Indigenous opposition to wind projects. Campaigners said they were stopped at a coronavirus checkpoint and shot at by supporters of a local mayor who backed the wind projects.
Last month, a French court allowed a civil case against the energy giant EDF to proceed after Indigenous people in Oaxaca argued the company failed to prevent violence and intimidation of wind farm opponents.
The violence has quietened down in the past few years due to national government policy changes and several court cases limiting new wind investment in the area, said local residents, including both critics and supporters of the projects.
Opposition is “political”
Not everyone in Union Hidalgo is opposed to the wind farms. On a rainy Saturday on his mango, avocado and guava farm, Dueter Toledo Ordonez told Climate Home: “These projects aren’t bothering me.”
“Some people don’t like it,” he said, with wind turbines in the distance, “but it’s all political … It’s clean energy; it’s the future.”
His father, who farms a nearby plot, had a contract with an energy company to install windmills on his land, added Ordonez, “but something happened with the politics and people said they were polluting” so the company stopped construction.

Deuter Toledo Ordonez tends to crops on his land in Union Hidalgo on June 8, 2024. (Photo: Leon Pineda)
Juqulia Elizabeth Lopez Ruiz, a spokesperson for the secretary of renewable energy for Juchitan district, told Climate Home the 28 wind parks in Tehuantepec bring a lot of jobs.
But she acknowledges some farmers aren’t happy about the projects. “To respond to these concerns: we have Indigenous assemblies where we decide the correct way to act with these wind farms,” she said.
As for concerns raised by wind farm opponents that some municipal lawmakers have been corrupted by energy companies, Lopez Ruiz said this was “just speculation”.
“At one point there was a candidate who had the support of the companies but he stopped being a candidate,” said the local government spokesperson, without naming the politician or discussing specifics of the case.
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Eduardo Martinez Noriegua is an ecologist with the environmental group Ecological Forum in Juchitan, which has conducted some monitoring around the projects.
He said that anger over potential disruptions to migratory bird populations from wind farms, increased litter and soil and water contamination from the oil lubricating the turbines are justified.
“I believe the government is being very permissive with the quality control for these operations,” he said.
Energy nationalisation
When Sheinbaum takes office, she will be leading a country that gets nearly 80% of its electricity from fossil fuels and is one of only two G20 countries without a commitment to reach net-zero carbon emissions.
Her key political backer – the popular current president, Andres Manuel Lopez Obrador (AMLO) – invested heavily in new oil infrastructure, and asserted greater national control over the electricity market.
Mexico nationalized its oil industry in the 1930s, and AMLO has taken a similar approach to key materials for the energy transition, cancelling lithium mining concessions granted to foreign firms and creating a new national company to extract the critical mineral.
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The Federal Electricity Commission (CFE), a state agency, was also given more control over power generation and distribution.
Sheinbaum has signalled she will continue her predecessor’s policies of state dominance in the energy sector.
Despite the government’s “quest to nationalise electricity generation”, Marilyn Christian, an advisor to the Mexican Centre for Environmental Law, an advocacy group, said the CFE doesn’t currently have the technology to rapidly increase renewable power production. Instead, as demand grows, it has turned to fossil fuels to generate electricity.
“Emissions in the electricity sector … have been on the rise since 2021 – that is bad news for our commitments on reducing carbon emissions,” she said. “We have many expectations with Claudia Sheinbaum. She has a solid academic background in environmental issues … [but] Claudia is also a politician. She has a clear position and ideology.”
Christian said she supports the idea of public control over electricity in principle, an effective option in some European countries, but it will only work if the CFE has the capacity to deliver.
Back in Union Hidalgo, most wind farm critics said their views wouldn’t change if a public institution like the CFE, rather than private companies, managed the projects, posing another complication for generating more renewable power.
But some of the changes recommended by Sheinbaum in her study on Oaxaca, including deeper consultation with communities living nearby and taking their concerns seriously, could help smooth things out, Ramirez said.
“We are not totally against this kind of green energy,” she said as hundreds of white windmills whirred in the distance. “It’s about how they do business.”
(Reporting by Chris Arsenault and Philippe Le Billon, editing by Joe Lo and Megan Rowling)
The travel and reporting for this story were funded by a grant from the Global Reporting Centre and Social Sciences Humanities and Research Council.
The post A simmering conflict over one of Latin America’s biggest wind hubs confronts Mexico’s next president appeared first on Climate Home News.
A simmering conflict over one of Latin America’s biggest wind hubs confronts Mexico’s next president
Climate Change
Colombia proposes expert group to advance talks on minerals agreement
Colombia wants countries to discuss options for a global agreement to ensure that the extraction, processing and recycling of minerals – including those needed for the clean energy transition – don’t harm the environment and human wellbeing.
The mineral-rich nation is proposing to create an expert group to “identify options for international instruments, including global and legally-binding instruments, for coordinated global action on the environmentally sound management of minerals and metals through [their] full lifecyle”.
Colombia hopes this will eventually lead to an agreement on the need for an international treaty to define mandatory rules and standards that would make mineral value chains more transparent and accountable.
The proposal was set out in a draft resolution submitted to the UN Environment Assembly (UNEA) earlier this week and seen by Climate Home News. UNEA, which is constituted of all UN member states, is the world’s top decision-making body for matters relating to the environment. The assembly’s seventh session will meet in Kenya in December to vote on countries’ proposals.
Soaring demand for the minerals used to manufacture clean energy technologies and electric vehicles, as well as in the digital, construction and defence industries have led to growing environmental destruction, human rights violations and social conflict.
Colombia argues there is an “urgent need” to strengthen global cooperation and governance to reduce the risks to people and the planet.
Options for a global minerals agreement
The proposal is among a flurry of initiatives to strength global mineral governance at a time when booming demand is putting pressure on new mining projects.
Colombia, which produces emeralds, gold, platinum and silver for exports, first proposed the idea for a binding international agreement on minerals traceability and accountability on the sidelines of the UN biodiversity talks it hosted in October 2024.
Since then, the South American nation has been quietly trying to drum up support for the idea, especially among African and European nations.
Its draft resolution to UNEA7 contains very few details, leaving it open for countries to discuss what kind of global instrument would be best suited to make mineral supply chains more transparent and sustainable.
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Colombia says it wants the expert group to build on other UN initiatives, including a UN Panel on Critical Energy Transition Minerals, which set out seven principles to ensure the mining, processing and recycling of energy transition minerals are done responsibly and benefit everyone.
The group would include technical experts and representatives from international and regional conventions, major country groupings as well as relevant stakeholders.
It would examine the feasibility and effectiveness of different options for a global agreement, consider their costs and identify measures to support countries to implement what is agreed.
The resolution also calls for one or two meetings for member states to discuss the idea before the UNEA8 session planned in late 2027, when countries would decide on a way forward.
No time to lose for treaty negotiations
Colombia’s efforts to advance global talks on mineral supply chains have been welcomed by resource experts and campaigners. But not everyone agrees on the best strategy to move the discussion forward at a time when multilateralism is coming under attack.
Johanna Sydow, a resource policy expert who heads the international environmental policy division of the Heinrich-Böll Foundation, said she had hoped that the resolution would explicitly call for negotiations to begin on an international minerals treaty.
“Treaty negotiations take a long time. If you don’t even start with it now, it will take even longer. I don’t see how in two or three years it will be easier to come to an agreement,” she told Climate Home.
Despite the geopolitical challenges, “we need joint rules to prevent a huge race to the bottom for [mineral] standards”. That could start with a group of countries coming together and starting to enforce joint standards for mining, processing and recycling minerals, she said.
But any meaningful global agreement on mineral supply chains would require backing from China, the world’s largest processor of minerals, which dominates most of the supply chains. And with Colombia heading for an election in May, it will need all the support it can get to move its proposal forward.
‘Voluntary initiative won’t cut it’
Juliana Peña Niño, Colombia country manager at the Natural Resource Governance Institute, is more optimistic. “Colombia’s leadership towards fairer mineral value chains is a welcome step,” she told Climate Home News.
“At UNEA7, we need an ambitious debate that gives the proposed expert group a clear mandate to advance concrete next steps — not delay decisions — and that puts the voices of those most affected at the centre. One thing is clear: the path forward must ultimately deliver a binding instrument, as yet another voluntary initiative simply won’t cut it,” she said.
More than 50 civil society groups spanning Latin America, Africa and Europe previously described Colombia’s work on the issue as “a chance to build a new global paradigm rooted in environmental integrity, human rights, Indigenous Peoples’ rights, justice and equity”.
“As the energy transition and digitalisation drive demand for minerals, we cannot afford to repeat old extractive models built on asymmetry – we must redefine them,” they wrote in a statement.
Main image: The UN Environment Assembly is hosted in Nairobi, Kenya. (Natalia Mroz/ UN Environment)
The post Colombia proposes expert group to advance talks on minerals agreement appeared first on Climate Home News.
Colombia proposes expert group to advance talks on minerals agreement
Climate Change
California Sanctions Stark Disparities in Pesticide Exposure During Pregnancy
If you’re young, pregnant and Latina, chances are you live near agricultural fields sprayed with higher levels of brain-damaging organophosphate pesticides.
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California Sanctions Stark Disparities in Pesticide Exposure During Pregnancy
Climate Change
DeBriefed 3 October 2025: UK political gap on climate widens; Fossil-fuelled Typhoon Ragasa; ‘Overshoot’ unknowns
Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Shattered climate consensus
FRACKING BAN: UK energy secretary Ed Miliband has announced that the government will bring forward its plans to permanently ban fracking, in a move designed to counter a promise from the hard-right Reform party to restart efforts to introduce the practice, the Guardian said. In the same speech, Miliband said Reform’s plans to scrap clean-energy projects would “betray” young people and future generations, the Press Association reported.
ACT AXE?: Meanwhile, Kemi Badenoch, leader of the Conservatives, pledged to scrap the 2008 Climate Change Act if elected, Bloomberg reported. It noted that the legislation was passed with cross-party support and strengthened by the Conservatives.
‘INSANE’: Badenoch faced a backlash from senior Tory figures, including ex-prime minister Theresa May, who called her pledge a “catastrophic mistake”, said the Financial Times. The newspaper added that the Conservatives were “trailing third in opinion polls”. A wide range of climate scientists also condemned the idea, describing it as “insane”, an “insult” and a “serious regression”.
Around the world
- CLIMATE CRACKDOWN: The US Department of Energy has told employees in the Office of Energy Efficiency and Renewable Energy to avoid using the term “climate change”, according to the Guardian.
- FOREST DELAY: Plans for Brazil’s COP30 flagship initiative, the tropical forests forever fund, are “suffer[ing] delays” as officials remain split on key details, Bloomberg said.
- COP MAY BE ‘SPLIT’: Australia could “split” the hosting of the COP31 climate summit in 2026 under a potential compromise with Turkey, reported the Guardian.
- DIVINE INTERVENTION: Pope Leo XIV has criticised those who minimise the “increasingly evident” impact of global warming in his first major climate speech, BBC News reported.
€44.5 billion
The cost of extreme weather and climate change in the EU in the last four years – two-and-a-half times higher than in the decade to 2019, according to a European Environment Agency report covered by the Financial Times.
Latest climate research
- Fossil-fuelled climate change caused around 36% of Typhoon Ragasa’s direct damage to homes and properties in southern China, according to a rapid impact attribution study | Imperial Grantham Institute – Climate Change and the Environment
- Some 86% of the global population are concerned about climate change, according to a survey of 280,000 people in 142 countries and regions | Climate Policy
- A global shift towards a “planetary health diet” could slash emissions and save tens of thousands of lives each day | EAT-Lancet Commission 2025 report
(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)
Captured

Clean energy has met 100% of Great Britain’s electricity demand for a record 87 hours this year so far, according to new Carbon Brief analysis. This is up from just 2.5 hours in 2021 and 64.5 hours in all of 2024. The longest stretch of time where 100% of electricity demand was met by clean energy stands at 15 hours, from midnight on 25 May 2025 through to 3pm on 26 May, according to the analysis.
Spotlight
‘Overshoot’ unknowns
As the chances of limiting global warming to 1.5C dwindle, there is increasing focus on the prospects for “overshooting” the Paris Agreement target and then bringing temperatures back down by removing CO2 from the atmosphere.
At the first-ever Overshoot Conference in Laxenburg, Austria, Carbon Brief asks experts about the key unknowns around warming “overshoot”.
Sir Prof Jim Skea
Chair of the Intergovernmental Panel on Climate Change (IPCC) and emeritus professor at Imperial College London’s Centre for Environmental Policy
So there are huge knowledge gaps around overshoot and carbon dioxide removal (CDR). As it’s very clear from the themes of this conference, we don’t altogether understand how the Earth would react in taking CO2 out of the atmosphere.
We don’t understand the nature of the irreversibilities and we don’t understand the effectiveness of CDR techniques, which might themselves be influenced by the level of global warming, plus all the equity and sustainability issues surrounding using CDR techniques.
Prof Kristie Ebi
Professor at the University of Washington’s Center for Health and the Global Environment
There are all kinds of questions about adaptation and how to approach effective adaptation. At the moment, adaptation is primarily assuming a continual increase in global mean surface temperature. If there is going to be a peak – and of course, we don’t know what that peak is – then how do you start planning? Do you change your planning?
There are places, for instance when thinking about hard infrastructure, [where overshoot] may result in a change in your plan – because as you come down the backside, maybe the need would be less. For example, when building a bridge taller. And when implementing early warning systems, how do you take into account that there will be a peak and ultimately a decline? There is almost no work in that. I would say that’s one of the critical unknowns.
Dr James Fletcher
Former minister for public service, sustainable development, energy, science and technology for Saint Lucia and negotiator at COP21 in Paris.
The key unknown is where we’re going to land. At what point will we peak [temperatures] before we start going down and how long will we stay in that overshoot period? That is a scary thing. Yes, there will be overshoot, but at what point will that overshoot peak? Are we peaking at 1.6C, 1.7C, 2.1C?
All of these are scary scenarios for small island developing states – anything above 1.5C is scary. Every fraction of a degree matters to us. Where we peak is very important and how long we stay in this overshoot period is equally important. That’s when you start getting into very serious, irreversible impacts and tipping points.
Prof Oliver Geden
Senior fellow and head of the climate policy and politics research cluster at the German Institute for International and Security Affairs and vice-chair of IPCC Working Group III
[A key unknown] is whether countries are really willing to commit to net-negative trajectories. We are assuming, in science, global pathways going net-negative, with hardly any country saying they want to go there. So maybe it is just an academic thought experiment. So we don’t know yet if [overshoot] is even relevant. It is relevant in the sense that if we do, [the] 1.5C [target] stays on the table. But I think the next phase needs to be that countries – or the UNFCCC as a whole – needs to decide what they want to do.
Prof Lavanya Rajamani
Professor of international environmental law at the University of Oxford
I think there are several scientific unknowns, but I would like to focus on the governance unknowns with respect to overshoot. To me, a key governance unknown is the extent to which our current legal and regulatory architecture – across levels of governance, so domestic, regional and international – will actually be responsive to the needs of an overshoot world and the consequences of actually not having regulatory and governance architectures in place to address overshoot.
Watch, read, listen
FUTURE GAZING: The Financial Times examined a “future where China wins the green race”.
‘JUNK CREDITS’: Climate Home News reported on a “forest carbon megaproject” in Zimbabwe that has allegedly “generated millions of junk credits”.
‘SINK OR SWIM’: An extract from a new book on how the world needs to adapt to climate change, by Dr Susannah Fisher, featured in Backchannel.
Coming up
- 7 October: International Energy Agency (IEA) renewables 2025 report launch
- 8-10 October: World summit of Indigenous peoples and nature, Abu Dhabi, UAE
- 9-15 October: International Union for the Conservation of Nature (IUCN) 2025 congress, Abu Dhabi, UAE
Pick of the jobs
- UK government foreign, commonwealth and development office, senior climate policy adviser | Salary: CA$93,207. Location: Calgary, Canada
- Wellcome Trust, senior research manager, climate and health | Salary: £64,800. Location: London
- Bloomberg, product manager – climate, nature and sustainability regulations | Salary: Unknown. Location: London
DeBriefed is edited by Daisy Dunne. Please send any tips or feedback to debriefed@carbonbrief.org.
This is an online version of Carbon Brief’s weekly DeBriefed email newsletter. Subscribe for free here.
The post DeBriefed 3 October 2025: UK political gap on climate widens; Fossil-fuelled Typhoon Ragasa; ‘Overshoot’ unknowns appeared first on Carbon Brief.
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