Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Raging wildfires
SOUTH KOREAN BLAZE: Wildfires in south-eastern South Korea – the “worst wildfires in its history” – have killed at least 27 people and displaced more than 37,000 from their homes, the Korea Times reported. The Chosun Daily said that the 1,300-year-old Gounsa Temple “was reduced to ashes” and the fire continues to endanger many of the “most prized cultural assets”. A “spate” of recent wildfires in South Korea and Japan have been “linked to climate change”, the Japan Times said.
FUEL TO THE FIRES: Parts of North and South Carolina have been under evacuation orders due to several large, uncontained wildfires, with “millions of downed trees” from September’s Hurricane Helene fuelling the blazes, the Raleigh News & Observer reported. The Guardian added: “Many people in the area are still getting over the hurricane.”
UK climate and energy roundup
DEADLINE DROPPED: The UK’s High Court “agreed to push back the deadline” for the government to modify its “delivery plan” needed to meet its legally binding climate targets, BusinessGreen reported. The plan was published in 2023, but had been “subject to a legal challenge from green groups, which alleged it was not sufficiently detailed”, the outlet added.
‘GREEN SILENCE’: UK chancellor Rachel Reeves made “no mention of green issues” in her spring statement, the Guardian reported, adding that this “silence [came] as a relief” to “green experts”, given cuts announced elsewhere. Meanwhile, the Chinese owner of British Steel “rejected a £500m lifeline offer from the UK government, raising fears about thousands of jobs at the steelmaker”, the Financial Times reported.
Around the world
- IT’S ELECTRIC: Chinese automaker BYD “topped $100bn” in sales of electric vehicles and plug-in hybrids, surpassing electric-only manufacturer Tesla, the Financial Times said. Tesla sales have fallen 49% year-on-year in Europe in 2025, ABC News noted, even as EV sales overall grew 28%.
- CARBON MARKET: China released plans to include its steel, cement and aluminium industries in the country’s carbon-trading market, Reuters reported.
- COAL COMMITMENT: Germany’s incoming coalition “stand[s] by” plans to phase out coal power by 2038, according to a leaked draft reported by Euractiv, which noted the outgoing government had “favoured” 2030.
- POWER SURGE: Record temperatures in 2024 meant “global energy demand surged” last year, according to a report from the International Energy Agency covered by the Wall Street Journal. A record 585 gigawatts of new renewables were added last year, Axios reported, citing International Renewable Energy Agency data.
- SHIP-SHAPE: In Climate Home News, Kenya’s special envoy for climate change, Ambassador Ali Mohamed, “unequivocally” endorsed a proposed carbon levy on emissions from ships.
267
The number of days in 2024 – nearly three-quarters of the year – in which the US was experiencing a “major disaster”, according to analysis of US Federal Emergency Management Agency data by the International Institute for Environment and Development and CNN.
Latest climate research
- Research in the Journal of Environmental Psychology found that political polarisation around climate change becomes more pronounced as countries become wealthier.
- In China, compound hot-dry and hot-wet events became more frequent, long-lasting and intense from 1985 to 2019, with serious implications for crop losses, a new study in Earth’s Future found.
- A study in Environmental Research Letters detailed a machine learning-driven model capable of accurately forecasting marine heatwaves 10 days in advance.
(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)
Captured
The US National Snow and Ice Data Center announced that Arctic sea ice reached its annual maximum extent on 21 March. At 14.33m km2, the winter peak is the smallest in the 47-year satellite record. Dr Julienne Stroeve, a senior scientist at the NSIDC, told Carbon Brief that the record low “continue[s] the overall long-term decline in the ice cover”.
Spotlight
Warming may turn butterfly hotspots from ‘safe havens to graves’
This week, Carbon Brief covers a new study that mapped and analysed the biodiversity of butterfly species around the world.
Up to a third of butterfly biodiversity “hotspots” will become too warm for the species they host by 2070, according to new research.
The study, which analysed distributional data on more than 12,000 butterfly species, was published this week in Nature Ecology & Evolution.
It found that two-thirds of butterfly species are mountain-dwellers, with mountains holding 3.5 times more butterfly biodiversity hotspots than lowland ecosystems.
The lead author of the paper told Carbon Brief he hopes that the approach laid out in the study will “broadly boost the representation of insects in global ecology and conservation”.

Mapping hotspots
Butterflies are “uniquely well-documented among insects”, Dr Stefan Pinkert, a researcher at Germany’s University of Marburg, told Carbon Brief.
But, even so, “much of this information remain[s] fragmented and inaccessible”, said Pinkert, who led the new study.
Pinkert and his colleagues used a country-level database of butterfly occurrences, along with regional range maps and previously published species-distribution models, to model the distribution of 12,119 butterfly species. They then calculated and mapped the “richness” and “range rarity” of butterfly species around the world.
Species richness was calculated as the number of unique species in the database for a given area. “Range rarity” is inversely proportional to the range size of the species in an area.
For both richness and range rarity, the researchers defined a “hotspot” as the 5% of areas around the world with the highest value of each quantity. They found that only 10% of species richness hotspots and 10% of range rarity hotspots overlap. The study said that this underlines the “limited value” of species-richness hotspots for identifying conservation priorities.
Pinkert told Carbon Brief that he was concerned to find that only 40-45% of butterfly biodiversity hotspots overlap with the biodiversity hotspots of land animals. Land-animal biodiversity has historically “served as main surrogates for defining” priorities for global conservation, he added.
Warming warning
The researchers also found that around two-thirds of all butterfly species they studied live in mountain regions, with species richness peaking at around 2,500 metres elevation and range rarity peaking at 3,500 metres. They noted that, while mountains are known for their species richness, the concentration of butterfly biodiversity is “substantially” higher than it is for other types of organisms, such as plants, birds and reptiles.
They then used climate models to project warming over the next 45 years – as well as how those temperature changes will affect butterfly habitat in the future.
They found that “temperature niche loss” – warming beyond the safe temperature range for species in a given area – would erode up to one-third of species-richness hotspots globally, under a very-high emissions scenario, with some areas losing nearly two-thirds of their hotspot area. Under a moderate emissions scenario, sub-Saharan Africa and south-east Asia would each lose a quarter of their temperature niches.
The loss of safe temperature niches was greater for hotspot areas than non-hotspot areas. The authors concluded that under accelerating warming, mountains might be converted “from safe havens to graves”.
Pinkert told Carbon Brief:
“Our results underscore the urgent need to prioritise insect conservation amid global change…Business-as-usual in prioritisation and implementation [of conservation actions] will threaten ecosystem integrity – the foundation of our well-being and that of future generations.”
Watch, read, listen
TIMELY TREK: Latin America Reports chronicled a journey to visit Colombia’s melting Andean glaciers on the country’s “climate change trail”.
ENERGY OUTLOOK: Kaare Sandholt of top Chinese thinktank the Energy Research Institute talked about the country’s energy transformation outlook – recently covered by Carbon Brief – on the Environment China podcast.
TRUMP-PROOF TOOLS: The Guardian recreated a climate-risk tool that had been purged from the US Federal Emergency Management Agency’s website under Trump’s anti-climate directives.
Coming up
- 2-3 April: 41st UN-Water meeting, Rome
- 7-11 April: Meeting of the Marine Environment Protection Committee of the International Maritime Organization, London
Pick of the jobs
- Earthjustice, legislative director, climate and energy | Salary: $164,000-$182,200. Location: Washington DC
- International Maritime Organization, media and communications associate | Salary: £45,347. Location: London
- UN Environment Programme, finance and budget assistant | Salary: Unknown. Location: Nairobi
DeBriefed is edited by Daisy Dunne. Please send any tips or feedback to debriefed@carbonbrief.org.
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The post DeBriefed 28 March 2025: South Korea’s record-breaking wildfires; Arctic sea ice hits record-low peak; Butterfly biodiversity imperilled appeared first on Carbon Brief.
Climate Change
As Prices Soar, EPA Greenlights Higher Ethanol Blends in Gasoline
The agency typically doesn’t allow smog-creating ethanol blends in the summer but is relaxing that restriction to appease consumers and farmers.
The Trump administration handed farmers and the ethanol industry a win on Wednesday by issuing a waiver that will allow the use of higher corn-based ethanol blends in gas tanks this summer.
As Prices Soar, EPA Greenlights Higher Ethanol Blends in Gasoline
Climate Change
Ugandan farmers use British court to try to stop oil pipeline
A group of farmers plans to sue the developers of the East African Crude Oil Pipeline (EACOP) in a British court, claiming the project breaches the Ugandan constitution and climate and environment law.
In a previously unreported letter before action, sent to the developers’ UK-based arm in January, the farmers say they and their livelihoods risk being harmed by climate change which the pipeline will worsen by generating millions of tonnes of greenhouse gas emissions.
Their law firm, London-based Leigh Day, plans to file a formal claim in the next few months, in which it will ask for construction of the pipeline – which will cost around $5.6 billion to build, spans Uganda and Tanzania and is four-fifths complete – to be halted.
The lawsuit has been crowdfunded by donations from over 40,000 people, coordinated by the Avaaz campaign group, which promote the case as “one final chance to stop one of the worst oil pipelines on the planet”.
The pipeline is a joint venture led by French company TotalEnergies, with smaller stakes owned by Uganda, Tanzanian and Chinese national oil firms. But it is operated by EACOP Ltd, a company registered to an office in Canary Wharf, the tallest building in London’s financial district.
Leigh Day solicitor Joe Snape, who represents the group of farmers, said EACOP highlights how corporations in the Global North are profiting from fossil fuel extraction projects in the Global South which also suffer most from their worsening of climate change.
Ugandan law tested in UK court
The group of four farmers accuses EACOP Ltd of breaching their right to a clean and healthy environment under the Ugandan constitution, as well as its legal obligations under Uganda’s National Environment Act and National Climate Change Act.
Leigh Day solicitor Joe Snape, who represents the farmers, told Climate Home News that Ugandan law has novel clauses allowing people to make environmental claims without having to demonstrate a precise link to their own loss. They just have to show that the action complained of threatens, or is likely to threaten, efforts to reduce emissions or adapt to climate change, he said.
However, these clauses have not yet been tested in court, so it will be up to British judges, if they accept the case, to interpret how they apply in practice.
Leigh Day is keen to use the UK’s legal system because it perceives it as more impartial and efficient than that of Uganda, Snape said. A climate lawsuit filed in Uganda more than a decade ago by a group of young people has yet to conclude.
EACOP has been subject to repeated lawsuits in several countries, none of which have succeeded. A case at the East African Court of Justice, brought by campaign groups against Uganda and Tanzania, was rejected on procedural grounds last November.
A separate ongoing lawsuit in TotalEnergies’ home country of France – a refiled version of an earlier failed claim – cannot stop EACOP going ahead, but it does seek damages from TotalEnergies for affected communities.
Thousands already displaced
The pipeline, which will link Uganda’s Lake Albert oil fields to Africa’s east coast in Tanzania, is around 80% completed according to its developers, with first oil exports possible as early as October.
Thousands of people have already been displaced by the pipeline, with compensation paid and many training schemes – whose quality has been criticised – already completed.
Despite this progress, the farmers’ legal team say that a court could still stop the pipeline from being completed. Any contractual or compensation issues arising from the stoppage and the billions of dollars of sunk costs would have to be dealt with separately, said Snape.
Gerald Barekye, a farmer, researcher and campaigner, from the pipeline-affected Hoima district, will be one of the claimants. He said that Ugandan communities were already living with flooding, drought and food insecurity caused by climate change.
“Allowing these oil companies to complete the construction of the EACOP pipeline and extract millions of barrels of oil, which will produce millions of tonnes of emissions, will only make this situation in this region worse and deepen our suffering,” he said.
Agriculture, which makes up a fifth of Uganda’s GDP and employs two-thirds of its population, is likely to be affected by falling yields, rising plant pests and diseases, reduced suitable for crop growing and changes to growing seasons caused by climate change.
As well as the climate impacts, they will argue that the pipeline will have a significant impact on local nature and wildlife from possible oil spills, habitat fragmentation, noise pollution and new infrastructure, and poses a threat to major water resources.

Michel Forst, UN Special Rapporteur on environmental defenders under the Aarhus Convention, has raised further concerns about “serious allegations of persistent and widespread attacks and threats” against environmental defenders in Uganda over the project.
In 2022, Ugandan police arrested nine activists protesting against EACOP. One protester, Nabuyanda John Solomon, told Climate Home News at the time that police had broken one man’s arm and hit another in the eye with a baton.
EACOP Limited did not respond to a request for comment.
The post Ugandan farmers use British court to try to stop oil pipeline appeared first on Climate Home News.
Ugandan farmers use British court to try to stop oil pipeline
Climate Change
How small island states can make renewables the bedrock of resilience
Pepukaye Bardouille is the Director of the Bridgetown Initiative and Special Advisor in the Prime Minister’s Office of Barbados. Kerrie Symmonds is Barbados’ Minister of Energy and Business and Senior Minister coordinating Productive Sectors.
When conflict erupts in one region, consequences can reverberate across the globe. Beyond the tragic human toll, the economic impact is palpable. In 2022, the war in Ukraine illustrated this clearly: fractured supply chains and soaring oil prices sent fuel import bills skyrocketing. And again, today, as oil prices spike amidst conflict in the Middle East, the stakes could not be higher, in particular for Small Island Developing States (SIDS).
For SIDS, resilience and energy have always been inseparable. When a hurricane hits, power lines fall. When shipments stall, oil dependence becomes a liability. Yet these countries also hold a strategic advantage in the form of abundant wind, sun, waves, and in many cases geothermal resources.
Harnessed effectively, these can power entire economies cost-effectively. With this in mind, SIDS have set some of the world’s most ambitious climate targets, with several pledging 100% renewable electricity within the next decade or two. And they have made progress: installed renewable capacity across SIDS tripled from 3.3 GW in 2014 to 9.4 GW in 2024.
But execution and financing still lag well behind ambition – and in the midst of an oil shock, closing that gap isn’t a policy preference for SIDS. It’s a matter of survival.
Lessons from Barbados
Barbados offers an example of what a credible pathway looks like. Its 50MW Lamberts and Castle project will be the country’s first utility-scale onshore wind farm and one of the largest in the Caribbean – building on a renewables base that already supplies 16% of power capacity.
Developed as a public-private partnership, it evolved from a 10MW concept into a utility-scale investment. That journey holds several lessons for other SIDS looking to accelerate their energy transition.
First, be honest about what is politically palatable and ensure the population shares in the upside. Many SIDS operate state utilities that view private power producers as threats to sovereignty or revenue. But private actors often bring the capital and expertise that large-scale projects require.
The answer is smart design. Barbados models this well, pairing private generation ownership with structures that ensure national benefit, including opportunities for citizens to invest directly.
Second, ensure that the financials really work. Small islands face high per-megawatt costs, which logistics compound: transporting and installing large wind turbines can require port reinforcements, specialist cranes, and road widening.
These numbers rarely appear in headline budgets but can quietly kill a deal. Financing packages must therefore cover not just generation, but storage, grid upgrades, and the full logistics chain. These are too often treated as afterthoughts when they are, in practice, the difference between a project that gets built and one that doesn’t.
Collaboration required
Third, development partners must streamline energy transition support without compromising sustainability. Environmental and social studies, bird and bat surveys, community consultations, and grid analyses all take time, and rightly so. But their multiyear development timelines before a tender is issued are incompatible with 2030 or even 2035 energy targets.
SIDS need simplified processes with upfront permitting clarity, clearer regulatory pathways, and predefined safeguards. Development partners must move from project-by-project structuring to practical, time-sensitive and replicable models that reduce procedural drag while upholding environmental rigor.


Fourth, recognize that land access is critical to national energy security. In land-constrained countries, which most SIDS are, a handful of parcels can determine whether critical capacity is built. In Barbados, we expanded the Lamberts and Castle wind project site from 30MW to 50MW through careful planning and negotiation. These decisions can make or break a project’s financials, so landowners must be partners in the process, not obstacles to it.
Finally, mandate ‘all of government’ teams with the stamina to deliver. The Lamberts and Castle project advanced because the Ministry of Energy and Business, Barbados National Energy Company, Barbados Light and Power, community stakeholders and International Finance Corporation – the government’s transaction adviser – worked as a unified team.
Cheaper electricity and greater security
Energy transition projects need cross-agency partners empowered to make timely decisions, and a shared mission – all cemented by the ability to remove bottlenecks at the highest level. Institutional collaboration is not a nice-to-have, it is the engine of delivery.
Resilience cannot be outsourced, nor achieved through pledges alone. It must be built: panel by panel, battery by battery, turbine by turbine, grid by grid.
Building on the progress at Lamberts and Castle, Barbados is exploring the possibility of tripling its wind energy capacity through a public–private partnership model. Importantly, this expansion will not compromise food security. Wind turbines typically occupy less than 5% of the land area, allowing the remaining space to continue supporting agricultural production, another key resilience priority for Barbados.
In Barbados, new turbines will soon turn in the same trade winds that once powered sugar windmills, this time delivering cheaper electricity, greater economic security, and the ability to meet climate goals on our own terms. By putting renewables at the heart of resilience, SIDS can secure energy independence and lead the world in climate and economic security.
The post How small island states can make renewables the bedrock of resilience appeared first on Climate Home News.
How small island states can make renewables the bedrock of resilience
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