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.
This is an online version of Carbon Brief’s weekly DeBriefed email newsletter. Subscribe for free here.
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
Analysis: Wind and solar power overtake fossil fuels in Germany for first time ever
More of Germany’s electricity came from wind and solar power than fossil fuels for the first time ever in 2025.
Together, wind and solar power generated 225 terawatt hours (TWh) of electricity – accounting for 44% of the total in 2025 – with just 217TWh (43%) coming from fossil fuels.
Solar and onshore wind have grown rapidly under Germany’s “Energiewende” strategy over the past two decades, as the nation transitions away from both coal and nuclear power.
Renewables have recently faced mounting opposition from the far-right Alternative for Germany (AfD) party and the current coalition government has been trying to develop new gas-power plants.
Nevertheless, Carbon Brief analysis of Energy Institute data – shown in the chart below – illustrates how wind and solar have continued growing, emerging as the nation’s largest power source.
The success of renewables in Germany mirrors the EU as a whole, which also saw wind and solar overtake fossil-fuel power generation in 2025 for the first time.
Germany has various targets in place that require a rapid expansion of wind and solar power, including cutting economy-wide emissions to net-zero by 2045.
The nation is also aiming to increase renewables’ share of electricity consumption to 80% by 2030 to achieve a “largely climate neutral” power system by 2035. It aims to decarbonise its electricity entirely once coal power has been phased out, which has a deadline of “no later than” 2038.
(The renewables targets also include electricity generated from hydropower and bioenergy. The latter produces a relatively large share of Germany’s power – roughly a tenth in 2025.)
Germany has to rely on renewables more than neighbours, such as France and the UK, to achieve its climate goals. This is due to its phaseout of nuclear power, which is a key part of the “Energiewende” strategy.
Nuclear power has long faced widespread public opposition in Germany. This year, the centre-right chancellor Friedrich Merz described the nuclear phaseout as a “strategic mistake”, but the government has ruled out a return to conventional nuclear power.
The country has an official coal phaseout date of 2038, but experts say the country is on track to eliminate coal from its power supply years earlier. This is despite some pressure to temporarily slow the transition away from coal during the recent energy crisis.
(Very few outside the AfD are calling to scrap the coal phaseout altogether, but the government will publish a review of the timelines in August.)
While coal generation has fallen quickly, even as nuclear was being phased out, some argue that coal could have been cut more quickly if nuclear had remained.
Gas-power expansion has also been framed by the government in recent years as an essential component of Germany’s transition away from coal and nuclear power, to support a renewables-heavy grid.
The current government under Merz has tried to boost gas and recently adopted a law to provide state support for new gas-fired power plants. The plan is for these plants to be converted to run on “green hydrogen” by 2045, in order to meet the climate-neutrality goal.
Germany aims to install 115 gigawatts (GW) of onshore wind by 2030 and approved a record 20.8GW of new capacity in 2025.
Meanwhile, solar generation has reached unprecedented levels during the hot summer of 2026.
However, the government’s planned grid reforms have been criticised by the renewables industry for risking slowing down the energy transition. Under the proposals, renewables developers would only be granted automatic grid connections in areas with limited grid capacity if they waive compensation for future curtailed generation.
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The post Analysis: Wind and solar power overtake fossil fuels in Germany for first time ever appeared first on Carbon Brief.
Analysis: Wind and solar power overtake fossil fuels in Germany for first time ever
Climate Change
Analysis: 84% of nations miss deadline to identify ‘nature-harming’ subsidies by 2025
Most countries failed to meet a 2025 target to identify all of their subsidies that could be “harmful” to biodiversity, according to Carbon Brief analysis.
The findings also reveal that 32 countries spend an estimated $270bn on biodiversity-harming subsidies and other incentives each year.
This is the “tip of the iceberg”, one expert notes, with “trillions” spent globally.
In 2022, almost every country in the world agreed on a set of “goals” and “targets” aiming to halt and reverse biodiversity loss by 2030.
One of these targets asked countries to identify all subsidies that damage biodiversity by 2025, before phasing out or reforming at least $500bn of these incentives by 2030.
The subsidies can be found in a range of sectors, including fossil fuels, agriculture, forestry, mining and fishing.
Just 21 countries appear to have met the 2025 goal, Carbon Brief finds, based on analysis of 134 national reports submitted to the UN Convention on Biological Diversity (CBD) by 1 July 2026.
Five of the world’s 17 megadiverse countries were among those that met the deadline.
Country progress
Carbon Brief’s analysis looks at the number of countries that have met the 2025 target to identify their use of nature-harming subsidies.
However, the metrics to determine which countries have “met” this target are not explicitly defined.
Carbon Brief included any country that says it has completed the process of identifying its subsidies. In almost every case, these countries also included a total figure for the value of those subsidies.
The analysis finds that 21 countries say they have identified their harmful subsidies, as shown in the map below (yellow). This amounts to 16% of the countries that have submitted national reports so far.
A further 11 countries, plus the EU, have provided figures for some of their subsidies, such as only those in a specific sector (dark blue).
Of the 134 national reports submitted to the CBD, 66 make reference to beginning the process (medium blue), while the remaining 68 do not (light blue). The final 62 countries party to the CBD have yet to submit a national report (light grey).
(Every country in the world participates in the CBD, except for the US and the Holy See – the governing body of the Catholic church, which is seated in Vatican City.)

The 32 countries that have identified some or all subsidies spend almost $270bn on nature-harming incentives annually, according to Carbon Brief’s analysis.
This is based on a tally of the figures for the most recent available year listed in countries’ national reports, in US dollars using conversion rates at the end of the given year and adjusted for inflation. The analysis also includes figures from other reports cited in the country submissions.
The $270bn reported in country submissions to date is “just the tip of the iceberg”, notes Eva Zabey, the chief executive of Business for Nature. The global figure could be as high as $1.8tn, according to a 2022 estimate from non-profit group, the B Team.
The figures identified by Carbon Brief are a “warning” that the “world is not moving fast enough” to tackle harmful subsidies, Zabey says, adding:
“The positive news is that some countries have shown it can be done and this should embolden others to follow suit…Subsidy reform should be treated as an economic necessity, not an environmental checklist.”
Harmful subsidies are expected to be among the key priorities at the upcoming COP17 UN nature summit, being held in Armenia in October 2026.
Subsidy target
There is no single definition of a “harmful” subsidy. (See: ‘Harmful’ subsidies.)
The aim to identify these subsidies stems from target 18 of the Kunming-Montreal Global Biodiversity Framework (GBF) – the global agreement containing a series of goals and targets for nature.

Target 18 calls on countries to identify subsidies and other incentives that are harmful for biodiversity by 2025.
It also says that nations should “eliminate, phase out or reform” these subsidies in a “proportionate” way, reducing them by at least $500bn per year by 2030.
It says countries should first target the “most harmful” incentives, while simultaneously scaling up positive incentives for nature.
All 2030 targets in the GBF are global – with countries each expected to outline how they will contribute nationally. So far, 169 countries have submitted these national targets.
Only 38% of countries addressed the 2025 aim to identify harmful subsidies in their national targets “to some extent”, according to a draft version of an upcoming progress report.
Countries’ national reports do not “provide a sufficient basis to determine” whether the 2025 milestone was met, says the report, but available evidence “suggests” that it was not.
‘Harmful’ subsidies
There is no universally agreed-upon definition of a “biodiversity-harmful subsidy” – or how it differs from an environmentally harmful subsidy.
In general, “harmful” environmental subsidies impact humans’ surroundings, whereas those harmful to biodiversity directly affect species and ecosystems. Paul Elton, a PhD candidate at the Australian National University, tells Carbon Brief:
“If you were to do a study that focused on biodiversity-harmful subsidies versus one that focused on environmentally-harmful subsidies, there’d be a Venn diagram where a large percentage would overlap.”
A 2022 working paper on identifying subsidies harmful to biodiversity published by the Organisation for Economic Co-operation and Development (OECD) depicted biodiversity as a subset of the environment, with climate and air falling outside the scope of “biodiversity”.
However, the report also noted that climate change is one of the five key drivers of biodiversity loss, adding:
“As such, subsidies that lead to larger greenhouse gas emissions, for example, will also indirectly impact on biodiversity.”

Prof Jessica Dempsey, a political ecologist at the University of British Columbia, tells Carbon Brief that she would “absolutely” consider fossil-fuel subsidies to be biodiversity-harming – not only as a driver of climate change, but also because the extraction of fossil fuels can cause localised harms to biodiversity. She adds:
“I do think probably it is true that all harmful subsidies are not necessarily biodiversity-related. Some care in that is important, but subsidies to the sectors that are known drivers of biodiversity loss feel very obvious to me.”
Biodiversity-harming subsidies can be either direct or indirect.
Direct subsidies refer to government expenditures that go towards a project that harms nature, such as construction of a new gas-fired power plant. Indirect subsidies could include tax exemptions that encourage a certain behaviour, such as lower tax rates on fuels for agricultural machinery.
Subsidies in agriculture, fishery and energy sectors are most commonly deemed “harmful”, but damage can also be caused by support for forestry, infrastructure, transport, construction, water and other sectors.
One recent estimate of the global total of biodiversity-harming subsidies put the figure at $1.7-3.2tn annually. An estimate of environmentally harmful subsidies put the figure at $2.6tn.
Elton tells Carbon Brief:
“It’s useful to contextualise the $500bn ambition of the GBF against those global estimates of how big [the total] actually could be, because that underscores the fact that so far, you’ve only got a subset of nations reporting about $250bn by your analysis, which is only half of the [phase-out target].
“It’s a significant lack of accountability.”
The chart below compares the $2.6bn estimated value of harmful subsidies to the $500bn phase-out target set in the GBF and the value of the subsidies identified so far in national reports.

Sectoral breakdown
Many subsidies can have both negative and positive impacts on biodiversity, according to the 2022 OECD working paper.
A subsidy on constructing dams for new hydropower can harm local biodiversity by disrupting water flows and flooding certain areas, for example. But it also reduces fossil-fuel dependence, lowering emissions and leading to a decrease in global warming.
Ronald Steenblik, a subsidies expert and co-author of the report estimating $2.6bn of harmful subsidies, tells Carbon Brief:
“What’s harmful is somewhat in the eye of the beholder.”
Most experts agree that a few sectors receive the bulk of the world’s biodiversity-harming subsidies: fossil fuels, agriculture and infrastructure, with much smaller contributions from other sectors, such as forestry, mining and fisheries.
Of the subsidies reported to the CBD, almost half were for the fossil-fuel sector, and around one-quarter for agriculture and fishing.

Dempsey says it is “surprising” that mining “didn’t show up” in these figures. (Of the 32 countries that provided subsidy data, only one mentioned mining as an industry that received harmful subsidies.)
Limitations
One limitation of Carbon Brief’s analysis is the lack of standardisation of subsidy data.
The methodology underlying the national reports lists several definitions of environmentally harmful subsidies, adding:
“[T]here is no standardised, globally agreed methodology for assessing the value of subsidies…nor is there a single global dataset providing this information.”
It adds that it is “important” for countries to identify harmful subsidies “within their national context”. Steenblik says:
“When you get down into the details, you can have lots of arguments of where you draw the line. And, so, the big question on this spreadsheet is where countries drew that line.”
For example, China’s national report says the country has already identified all biodiversity-harming subsidies and reformed them entirely.
In Australia, a 2026 study – led by Elton from Australian National University – identified biodiversity-harmful subsidies worth $26.3bn over 2022-23, a number that amounts to just over 1% of the country’s GDP.
However, in its national report, Australia identified $155m worth of subsidies, largely in the agricultural sector. (The national report says that the identified agricultural subsidies are those that are “potentially most harmful to the environment”.)
Elton tells Carbon Brief that this discrepancy underscores the necessity of an independent assessment of harmful subsidies, “rather than this just being seen as a tick-the-box reporting exercise by officials in the environment department”.
When it comes to actually phasing out harmful subsidies, Dempsey says, focusing on the quality of the subsidy – and who benefits from it – is just as important as focusing on the numbers. She adds:
“If we don’t take this lens of understanding the beneficiaries and we only focus on the [numbers], we really risk having policy changes that then lead to increased affordability problems for everyday working people, and backlash.”
Methodology
Carbon Brief analysed national reports submitted to the CBD by 134 parties – 133 countries and the EU – to assess which ones had identified all of their biodiversity-harmful subsidies and therefore met the 2025 deadline.
The reports were submitted in 2026, with the analysis including those submitted by 1 July 2026.
The figures for each country can be found in this spreadsheet. More than three-quarters of reports did not list any figures.
To get the full tally for the amount listed, Carbon Brief used the figures for 2025 (or the nearest available year) and converted the local currency into US dollars, based on conversion rates in the given year using the currency exchange rates calculator from the US Treasury.
These figures were then adjusted for inflation to the year 2025. Numbers were rounded to the nearest $1,000.
In total, this amounted to $269,856,769,000 in subsidies across 32 countries.
Many countries listed the sector that each subsidy is going towards. Carbon Brief standardised these inputs using the following categories:
- Agriculture and fishing
- Energy
- Forestry
- Fossil fuels
- Infrastructure
- Transport
- Other
- Multiple sectors
“Multiple sectors” was assigned when a country provided only a partial sectoral breakdown of their subsidies or none at all.
“Other” was selected to encompass sectors that were named more infrequently, including water, mining, tourism and construction.
The designations employed and the presentation of the material on the map in this article do not imply the expression of any opinion whatsoever on the part of Carbon Brief concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.
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The post Analysis: 84% of nations miss deadline to identify ‘nature-harming’ subsidies by 2025 appeared first on Carbon Brief.
Analysis: 84% of nations miss deadline to identify ‘nature-harming’ subsidies by 2025
Climate Change
Cook Government must recognise risks posed by Woodside’s Scott Reef drilling plans
SYDNEY, Monday 27 July 2026 — In response to an announcement that Woodside’s Browse to North West Shelf (Browse) Project was declared a State Significant Project by the WA Government, the following comments can be attributed to Senior Campaigner at Greenpeace Australia Pacific, Hannah Schuch:
“The WA Government must not ignore the significant risks clearly associated with Woodside’s plans to drill for gas at the pristine Scott Reef — to endangered marine life, our oceans, and our climate — all of which are valued and relied upon by Western Australians.
“The WA Environmental Protection Authority has already found Woodside’s plans to drill at Scott Reef would have unacceptable impacts on the environment without considering the climate impacts of 1.6 billion tonnes of carbon pollution associated with this disastrous proposal.
“Woodside’s gas drilling plans, including seismic blasting and carbon dumping in the heart of a precious ecosystem, pose potentially fatal risks to pygmy blue whales and genetically unique green sea turtles, and could cause a catastrophic oil spill.
“If the WA and federal governments are concerned with the prosperity of WA, they must reject Woodside’s nature and climate-wrecking proposal to drill for gas at Scott Reef.”
—ENDS—
High res images and footage of Scott Reef can be found here.
For more information or to arrange an interview, please contact Emma Sangalli on 0431 513 465 or emma.sangalli@greenpeace.org
Cook Government must recognise risks posed by Woodside’s Scott Reef drilling plans
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