Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Secrets and layoffs
UNLAWFUL PANEL: A federal judge ruled that the US energy department “violated the law when secretary Chris Wright handpicked five researchers who rejected the scientific consensus on climate change to work in secret on a sweeping government report on global warming”, reported the New York Times. The newspaper explained that a 1972 law “does not allow agencies to recruit or rely on secret groups for the purposes of policymaking”. A Carbon Brief factcheck found more than 100 false or misleading claims in the report.
DARKNESS DESCENDS: The Washington Post reportedly sent layoff notices to “at least 14” of its climate journalists, as part of a wider move from the newspaper’s billionaire owner, Jeff Bezos, to eliminate 300 jobs at the publication, claimed Climate Colored Goggles. After the layoffs, the newspaper will have five journalists left on its award-winning climate desk, according to the substack run by a former climate reporter at the Los Angeles Times. It comes after CBS News laid off most of its climate team in October, it added.
WIND UNBLOCKED: Elsewhere, a separate federal ruling said that a wind project off the coast of New York state can continue, which now means that “all five offshore wind projects halted by the Trump administration in December can resume construction”, said Reuters. Bloomberg added that “Ørsted said it has spent $7bn on the development, which is 45% complete”.
Around the world
- CHANGING TIDES: The EU is “mulling a new strategy” in climate diplomacy after struggling to gather support for “faster, more ambitious action to cut planet-heating emissions” at last year’s UN climate summit COP30, reported Reuters.
- FINANCE ‘CUT’: The UK government is planning to cut climate finance by more than a fifth, from £11.6bn over the past five years to £9bn in the next five, according to the Guardian.
- BIG PLANS: India’s 2026 budget included a new $2.2bn funding push for carbon capture technologies, reported Carbon Brief. The budget also outlined support for renewables and the mining and processing of critical minerals.
- MOROCCO FLOODS: More than 140,000 people have been evacuated in Morocco as “heavy rainfall and water releases from overfilled dams led to flooding”, reported the Associated Press.
- CASHFLOW: “Flawed” economic models used by governments and financial bodies “ignor[e] shocks from extreme weather and climate tipping points”, posing the risk of a “global financial crash”, according to a Carbon Tracker report covered by the Guardian.
- HEATING UP: The International Olympic Committee is discussing options to hold future winter games earlier in the year “because of the effects of warmer temperatures”, said the Associated Press.
54%
The increase in new solar capacity installed in Africa over 2024-25 – the continent’s fastest growth on record, according to a Global Solar Council report covered by Bloomberg.
Latest climate research
- Arctic warming significantly postpones the retreat of the Afro-Asian summer monsoon, worsening autumn rainfall | Environmental Research Letters
- “Positive” images of heatwaves reduce the impact of messages about extreme heat, according to a survey of 4,000 US adults | Environmental Communication
- Greenland’s “peripheral” glaciers are projected to lose nearly one-fifth of their total area and almost one-third of their total volume by 2100 under a low-emissions scenario | The Cryosphere
(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)
Captured
Solar power, electric vehicles and other clean-energy technologies drove more than a third of the growth in China’s economy in 2025 – and more than 90% of the rise in investment, according to new analysis for Carbon Brief (shown in blue above). Clean-energy sectors contributed a record 15.4tn yuan ($2.1tn) in 2025, some 11.4% of China’s gross domestic product (GDP) – comparable to the economies of Brazil or Canada, the analysis said.
Spotlight
Can humans reverse nature decline?
This week, Carbon Brief travelled to a UN event in Manchester, UK to speak to biodiversity scientists about the chances of reversing nature loss.
Officials from more than 150 countries arrived in Manchester this week to approve a new UN report on how nature underpins economic prosperity.
The meeting comes just four years before nations are due to meet a global target to halt and reverse biodiversity loss, agreed in 2022 under the landmark “Kunming-Montreal Global Biodiversity Framework” (GBF).
At the sidelines of the meeting, Carbon Brief spoke to a range of scientists about humanity’s chances of meeting the 2030 goal. Their answers have been edited for length and clarity.
Dr David Obura, ecologist and chair of Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES)
We can’t halt and reverse the decline of every ecosystem. But we can try to “bend the curve” or halt and reverse the drivers of decline. That’s the economic drivers, the indirect drivers and the values shifts we need to have. What the GBF aspires to do, in terms of halting and reversing biodiversity loss, we can put in place the enabling drivers for that by 2030, but we won’t be able to do it fast enough at this point to halt [the loss] of all ecosystems.
Dr Luthando Dziba, executive secretary of IPBES
Countries are due to report on progress by the end of February this year on their national strategies to the Convention on Biological Diversity [CBD]. Once we get that, coupled with a process that is ongoing within the CBD, which is called the global stocktake, I think that’s going to give insights on progress as to whether this is possible to achieve by 2030…Are we on the right trajectory? I think we are and hopefully we will continue to move towards the final destination of having halted biodiversity loss, but also of living in harmony with nature.
Prof Laura Pereira, scientist at the Global Change Institute at Wits University, South Africa
At the global level, I think it’s very unlikely that we’re going to achieve the overall goal of halting biodiversity loss by 2030. That being said, I think we will make substantial inroads towards achieving our longer term targets. There is a lot of hope, but we’ve also got to be very aware that we have not necessarily seen the transformative changes that are going to be needed to really reverse the impacts on biodiversity.
Dr David Cooper, chair of the UK’s Joint Nature Conservation Committee and former executive secretary of the Convention on Biological Diversity
It’s important to look at the GBF as a whole…I think it is possible to achieve those targets, or at least most of them, and to make substantial progress towards them. It is possible, still, to take action to put nature on a path to recovery. We’ll have to increasingly look at the drivers.
Prof Andrew Gonzalez, McGill University professor and co-chair of an IPBES biodiversity monitoring assessment
I think for many of the 23 targets across the GBF, it’s going to be challenging to hit those by 2030. I think we’re looking at a process that’s starting now in earnest as countries [implement steps and measure progress]…You have to align efforts for conserving nature, the economics of protecting nature [and] the social dimensions of that, and who benefits, whose rights are preserved and protected.
Neville Ash, director of the UN Environment Programme World Conservation Monitoring Centre
The ambitions in the 2030 targets are very high, so it’s going to be a stretch for many governments to make the actions necessary to achieve those targets, but even if we make all the actions in the next four years, it doesn’t mean we halt and reverse biodiversity loss by 2030. It means we put the action in place to enable that to happen in the future…The important thing at this stage is the urgent action to address the loss of biodiversity, with the result of that finding its way through by the ambition of 2050 of living in harmony with nature.
Prof Pam McElwee, Rutgers University professor and co-chair of an IPBES “nexus assessment” report
If you look at all of the available evidence, it’s pretty clear that we’re going to keep experiencing biodiversity decline. I mean, it’s fairly similar to the 1.5C climate target. We are not going to meet that either. But that doesn’t mean that you slow down the ambition…even though you recognise that we probably won’t meet that specific timebound target, that’s all the more reason to continue to do what we’re doing and, in fact, accelerate action.
Watch, read, listen
OIL IMPACTS: Gas flaring has risen in the Niger Delta since oil and gas major Shell sold its assets in the Nigerian “oil hub”, a Climate Home News investigation found.
LOW SNOW: The Washington Post explored how “climate change is making the Winter Olympics harder to host”.
CULTURE WARS: A Media Confidential podcast examined when climate coverage in the UK became “part of the culture wars”.
Coming up
- 2-8 February: 12th session of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), Manchester, UK
- 8 February: Japanese general election
- 8 February: Portugal presidential election
- 11 February: Barbados general election
- 11-12 February: UN climate chief Simon Stiell due to speak in Istanbul, Turkey
Pick of the jobs
- UK Met Office, senior climate science communicator | Salary: £43,081-£46,728. Location: Exeter, UK
- Canadian Red Cross, programme officer, Indigenous operations – disaster risk reduction and climate change adaptation | Salary: $56,520-$60,053. Location: Manitoba, Canada
- Aldersgate Group, policy officer | Salary: £33,949-£39,253. Location: London (hybrid)
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 6 February 2026: US secret climate panel ‘unlawful’ | China’s clean energy boon | Can humans reverse nature loss? appeared first on Carbon Brief.
Drought and heatwaves occurring together – known as “compound” events – have “surged” across the world since the early 2000s, a new study shows.
Compound drought and heat events (CDHEs) can have devastating effects, creating the ideal conditions for intense wildfires, such as Australia’s “Black Summer” of 2019-20 where bushfires burned 24m hectares and killed 33 people.
The research, published in Science Advances, finds that the increase in CDHEs is predominantly being driven by events that start with a heatwave.
The global area affected by such “heatwave-led” compound events has more than doubled between 1980-2001 and 2002-23, the study says.
The rapid increase in these events over the last 23 years cannot be explained solely by global warming, the authors note.
Since the late 1990s, feedbacks between the land and the atmosphere have become stronger, making heatwaves more likely to trigger drought conditions, they explain.
One of the study authors tells Carbon Brief that societies must pay greater attention to compound events, which can “cause severe impacts on ecosystems, agriculture and society”.
Compound events
CDHEs are extreme weather events where drought and heatwave conditions occur simultaneously – or shortly after each other – in the same region.
These events are often triggered by large-scale weather patterns, such as “blocking” highs, which can produce “prolonged” hot and dry conditions, according to the study.
Prof Sang-Wook Yeh is one of the study authors and a professor at the Ewha Womans University in South Korea. He tells Carbon Brief:
“When heatwaves and droughts occur together, the two hazards reinforce each other through land-atmosphere interactions. This amplifies surface heating and soil moisture deficits, making compound events more intense and damaging than single hazards.”
CDHEs can begin with either a heatwave or a drought.
The sequence of these extremes is important, the study says, as they have different drivers and impacts.
For example, in a CDHE where the heatwave was the precursor, increased direct sunshine causes more moisture loss from soils and plants, leading to a drought.
Conversely, in an event where the drought was the precursor, the lack of soil moisture means that less of the sun’s energy goes into evaporation and more goes into warming the Earth’s surface. This produces favourable conditions for heatwaves.
The study shows that the majority of CDHEs globally start out as a drought.
In recent years, there has been increasing focus on these events due to the devastating impact they have on agriculture, ecosystems and public health.
In Russia in the summer of 2010, a compound drought-heatwave event – and the associated wildfires – caused the death of nearly 55,000 people, the study notes.
The record-breaking Pacific north-west “heat dome” in 2021 triggered extreme drought conditions that caused “significant declines” in wheat yields, as well as in barley, canola and fruit production in British Columbia and Alberta, Canada, says the study.
Increasing events
To assess how CDHEs are changing, the researchers use daily reanalysis data to identify droughts and heatwaves events. (Reanalysis data combines past observations with climate models to create a historical climate record.) Then, using an algorithm, they analyse how these events overlap in both time and space.
The study covers the period from 1980 to 2023 and the world’s land surface, excluding polar regions where CDHEs are rare.
The research finds that the area of land affected by CDHEs has “increased substantially” since the early 2000s.
Heatwave-led events have been the main contributor to this increase, the study says, with their spatial extent rising 110% between 1980-2001 and 2002-23, compared to a 59% increase for drought-led events.
The map below shows the global distribution of CDHEs over 1980-2023. The charts show the percentage of the land surface affected by a heatwave-led CDHE (red) or a drought-led CDHE (yellow) in a given year (left) and relative increase in each CDHE type (right).
The study finds that CDHEs have occurred most frequently in northern South America, the southern US, eastern Europe, central Africa and south Asia.
Threshold passed
The authors explain that the increase in heatwave-led CDHEs is related to rising global temperatures, but that this does not tell the whole story.
In the earlier 22-year period of 1980-2001, the study finds that the spatial extent of heatwave-led CDHEs rises by 1.6% per 1C of global temperature rise. For the more-recent period of 2022-23, this increases “nearly eightfold” to 13.1%.
The change suggests that the rapid increase in the heatwave-led CDHEs occurred after the global average temperature “surpasse[d] a certain temperature threshold”, the paper says.
This threshold is an absolute global average temperature of 14.3C, the authors estimate (based on an 11-year average), which the world passed around the year 2000.
Investigating the recent surge in heatwave-leading CDHEs further, the researchers find a “regime shift” in land-atmosphere dynamics “toward a persistently intensified state after the late 1990s”.
In other words, the way that drier soils drive higher surface temperatures, and vice versa, is becoming stronger, resulting in more heatwave-led compound events.
Daily data
The research has some advantages over other previous studies, Yeh says. For instance, the new work uses daily estimations of CDHEs, compared to monthly data used in past research. This is “important for capturing the detailed occurrence” of these events, says Yeh.
He adds that another advantage of their study is that it distinguishes the sequence of droughts and heatwaves, which allows them to “better understand the differences” in the characteristics of CDHEs.
Dr Meryem Tanarhte is a climate scientist at the University Hassan II in Morocco, and Dr Ruth Cerezo Mota is a climatologist and a researcher at the National Autonomous University of Mexico. Both scientists, who were not involved in the study, agree that the daily estimations give a clearer picture of how CDHEs are changing.
Cerezo-Mota adds that another major contribution of the study is its global focus. She tells Carbon Brief that in some regions, such as Mexico and Africa, there is a lack of studies on CDHEs:
“Not because the events do not occur, but perhaps because [these regions] do not have all the data or the expertise to do so.”
However, she notes that the reanalysis data used by the study does have limitations with how it represents rainfall in some parts of the world.
Compound impacts
The study notes that if CDHEs continue to intensify – particularly events where heatwaves are the precursors – they could drive declining crop productivity, increased wildfire frequency and severe public health crises.
These impacts could be “much more rapid and severe as global warming continues”, Yeh tells Carbon Brief.
Tanarhte notes that these events can be forecasted up to 10 days ahead in many regions. Furthermore, she says, the strongest impacts can be prevented “through preparedness and adaptation”, including through “water management for agriculture, heatwave mitigation measures and wildfire mitigation”.
The study recommends reassessing current risk management strategies for these compound events. It also suggests incorporating the sequences of drought and heatwaves into compound event analysis frameworks “to enhance climate risk management”.
Cerezo-Mota says that it is clear that the world needs to be prepared for the increased occurrence of these events. She tells Carbon Brief:
“These [risk assessments and strategies] need to be carried out at the local level to understand the complexities of each region.”
The post Heatwaves driving recent ‘surge’ in compound drought and heat extremes appeared first on Carbon Brief.
Heatwaves driving recent ‘surge’ in compound drought and heat extremes
Greenhouse Gases
DeBriefed 6 March 2026: Iran energy crisis | China climate plan | Bristol’s ‘pioneering’ wind turbine
Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Energy crisis
ENERGY SPIKE: US-Israeli attacks on Iran and subsequent counterattacks across the Middle East have sent energy prices “soaring”, according to Reuters. The newswire reported that the region “accounts for just under a third of global oil production and almost a fifth of gas”. The Guardian noted that shipping traffic through the strait of Hormuz, which normally ferries 20% of the world’s oil, “all but ground to a halt”. The Financial Times reported that attacks by Iran on Middle East energy facilities – notably in Qatar – triggered the “biggest rise in gas prices since Russia’s full-scale invasion of Ukraine”.
‘RISK’ AND ‘BENEFITS’: Bloomberg reported on increases in diesel prices in Europe and the US, speculating that rising fuel costs could be “a risk for president Donald Trump”. US gas producers are “poised to benefit from the big disruption in global supply”, according to CNBC. Indian government sources told the Economic Times that Russia is prepared to “fulfil India’s energy demands”. China Daily quoted experts who said “China’s energy security remains fundamentally unshaken”, thanks to “emergency stockpiles and a wide array of import channels”.
‘ESSENTIAL’ RENEWABLES: Energy analysts said governments should cut their fossil-fuel reliance by investing in renewables, “rather than just seeking non-Gulf oil and gas suppliers”, reported Climate Home News. This message was echoed by UK business secretary Peter Kyle, who said “doubling down on renewables” was “essential” amid “regional instability”, according to the Daily Telegraph.
China’s climate plan
PEAK COAL?: China has set out its next “five-year plan” at the annual “two sessions” meeting of the National People’s Congress, including its climate strategy out to 2030, according to the Hong Kong-based South China Morning Post. The plan called for China to cut its carbon emissions per unit of gross domestic product (GDP) by 17% from 2026 to 2030, which “may allow for continued increase in emissions given the rate of GDP growth”, reported Reuters. The newswire added that the plan also had targets to reach peak coal in the next five years and replace 30m tonnes per year of coal with renewables.
ACTIVE YET PRUDENT: Bloomberg described the new plan as “cautious”, stating that it “frustrat[es] hopes for tighter policy that would drive the nation to peak carbon emissions well before president Xi Jinping’s 2030 deadline”. Carbon Brief has just published an in-depth analysis of the plan. China Daily reported that the strategy “highlights m