Welcome to Carbon Brief’s DeBriefed. An essential guide to the week’s key developments relating to climate change.
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This week
Extreme heat across the globe
SUPERLATIVE EXTREMES: Much of the world is experiencing extreme heat, with temperature records being broken on several continents but little western news coverage. Axios reported that temperatures in Japan are being “broken by rare margins”. The outlet added that Maximiliano Herrera, an independent climatologist who tracks weather records, “has been increasingly struggling to come up with new superlatives to describe” the extreme heat.
AFRICAN HEAT: Late last week, the Nigerian weather agency “predicted a prolonged heatwave across the country”, with temperatures forecast to rise above 40C, according to the Cable. In Kenya, the current “excess heat” could “persist till March”, the Standard reported. And “scorching” temperatures in parts of South Africa led to warnings for residents to stay indoors, the Witness said.
ASIAN EARLY BLOOMER: According to the Weather Channel, Japan’s iconic cherry blossoms are blooming early amid record heat there. The Thaiger reported that Thailand “is bracing for a severe heatwave”, while Cambodia’s meteorological ministry issued several advisories this week that maximum average temperatures could reach 37C, according to the Khmer Times.
AUSTRALIA ‘SWELTERING’: The Sydney Morning Herald wrote that “parts of Western Australia have sweltered through their hottest night on record” this week. “Extreme fire danger” led to school closures in the state, another article said.
Around the world
US REGULATIONS: US president Joe Biden is reportedly planning to “slow” the roll-out of tailpipe-emissions regulations – one of his administration’s “most ambitious strategies to combat climate change”, according to the New York Times. Meanwhile, US agencies are “scrambl[ing] to finish” environmental regulations “to ensure that a Republican Congress and White House can’t erase them next year”, Politico reported.
CLIMATE COCKTAIL: A deadly cholera outbreak in southern Africa “was likely triggered by a cocktail of issues”, Al Jazeera wrote, including “more severe flooding linked to climate change”. Heavy rainfall in the Amazon also triggered an alert for oropouche fever in the Brazilian city of Manaus, according to Folha de S. Paolo.
BACK-BURNER?: European Commission president Ursula von der Leyen is pursuing a second term, Politico reported, with “little appetite for expanding the Green Deal” amid concerns over “competitiveness, migration and defence”. However, a later Politico story quoted the draft manifesto of her party saying: “We want to further develop the Green Deal.” The Financial Times quoted von der Leyen saying: “We must achieve the climate targets…with the people and with the business sector.”
SOLAR SOARS: “‘World-leading’ electricity production” in China’s north-western deserts is being “fuelled by forces of nature”, with wind and solar making up more than half of the nearly 500 gigawatt capacity, according to the South China Morning Post.
EXTREMES AND ADAPTATION: Bangladesh was hit by 185 extreme weather events between 2000-19, according to a report covered by DownToEarth, which added that “adaptation policies and local initiatives have saved many lives”.
HIGH COURT CLAIMS: Three environmental groups are seeking legal action against the UK government over its decision to approve its “carbon budget delivery plan” in March 2023 without fully considering the risks, the Press Association wrote.
$281 billion
The profits of the “big five” oil majors – Shell, BP, Chevron, ExxonMobil and TotalEnergies – since Russia’s invasion of Ukraine, according to the campaign group Global Witness.
Latest climate research
New research by World Weather Attribution, covered by Carbon Brief, found that climate change had no significant impact on Chile’s recent deadly wildfires.
Climate change is affecting the feeding and migration patterns of bowhead whales, which could lead to more collisions with ships in the future, according to a new study in Geophysical Research Letters.
A paper in Environmental Research Letters found that increasing population density could raise the carbon emissions from mangrove forest degradation by 50,000% by the end of the century.
China will need ‘record drop’ in emissions to meet target
Amid rapid growth of electricity demand, China’s energy emissions will now need to fall by a record 4-6% by 2025 in order to meet the government’s “carbon intensity” target – its CO2 emissions per unit of economic output. New analysis for Carbon Brief found that China is “at risk of missing” its other key climate targets for next year, but most of these can still be achieved if the country returns to pre-2020 levels of energy demand growth while maintaining last year’s “acceleration of clean energy deployment”. The analysis was covered by publications including the Straits Times, the South China Morning Post, Reuters, the Guardian and Bloomberg.
Spotlight
Guest post: Why climate change matters for the pandemic treaty
In this spotlight, Dr Colin Carlson, a climate epidemiologist at Georgetown University, explains the connections between climate change and the proposed global pandemic treaty, as it enters the final stages of negotiations.
For more than a year, World Health Organization (WHO) member states have been working towards a new treaty that would formalise the lessons learned during the Covid-19 response.
On 19 February, delegates met at the WHO headquarters in Geneva to begin the eighth and penultimate session of negotiations. If countries can agree on final language, the Pandemic Agreement could then be adopted at the World Health Assembly in May.
The climate community has not paid much attention to these negotiations – nor has climate change featured heavily in the negotiations.
In the latest draft of the treaty, climate change is only mentioned once: the WHO and its member states are trying to move towards a “One Health” approach that protects human health, animal health and the environment, including “taking action on climate change”.
Animals are on the move, and bringing their viruses to new places. Rising temperatures make another pandemic of Zika virus or another mosquito-borne disease more likely – and next time, the risks to the US and Europe will be far greater. Hotter temperatures also mean more antibiotic resistant bacteria – which will make the next flu or coronavirus pandemic more deadly.
Investment and surveillance
In that light, climate change makes the Pandemic Agreement all the more urgent.
It could mean countries spend more on surveillance, helping scientists spot new diseases as they show up.
Investments in clean water, sanitation and primary healthcare would also reduce the burden of climate-sensitive diseases such as cholera and malaria, while more investments in veterinary workforce would help to protect animal health from emerging diseases such as avian influenza.
Most importantly, the proposed Pathogen Access and Benefit-Sharing (PABS) System would create a new framework for scientists around the world to share pathogen genomic sequence data with each other.
Pharmaceutical companies that access those data to design vaccines and therapeutics would then have to share some percent of their vaccines to the WHO, ensuring that low- and middle-income countries will have access to life-saving medicines – a massive step towards solving vaccine inequity and reducing disease risk in regions that are projected to see the largest increases in exposure because of climate change.
But first, the treaty has to survive the next three months. Since negotiations started, the PABS System has been flagged as a potential deal-breaker for high-income countries.
If the treaty falls through, health could become a much bigger problem for climate policy than it already is – after four million climate change-related deaths and counting.
Watch, read, listen
DEEP-SEA SECRETS: The rediscovery of a 1970s-era deep-sea mining test site may shed light on the method’s lasting environmental impacts, the Post and Courier wrote.
ENERGY EQUITY: On the New Books Network podcast, two researchers discussed equitable clean energy and a just transition in north Africa and the Middle East.
MEKONG’S MANGROVES: The Mekong Eye explored how Vietnam’s mangrove forests have been felled in the name of economic growth – and how they might be saved.
After the United States announced last week it would withdraw from the International Renewable Energy Agency (IRENA), effectively slashing more than a fifth of its core budget, the organisation’s head said it could “manage” the US exit, as top officials argued the energy transition is “unstoppable”.
Speaking to reporters at IRENA’s 16th Assembly in Abu Dhabi, Director-General Francesco La Camera said the US had yet to formally notify the agency it would be leaving. IRENA’s statute says withdrawal of a member country takes effect at the end of the year in which it is notified.
Until that point, they remain a member with all its rights, including the right to vote, but also “the duty to pay”, La Camera added.
The decision will make the US the only country to leave the UNFCCC, with the UN climate chief calling it a “colossal own goal” that will harm the US economy
The surge in employment linked to clean energy equipment and installation is slowing as large-scale plants and increasing automation require less labour
Even as it faces international condemnation over the Gaza war, Israel is working to boost natural gas exports and offshore exploration to strengthen its strategic and regional ties
On Sunday, IRENA’s member countries – around 170 in total – adopted a budget for the coming two years, which shows the US is expected to contribute 22% of IRENA’s core funding, with its share amounting to nearly $5.7 million for 2026.
La Camera said IRENA is already talking to governments and the private sector to fill the potential financial hole if the US does not deliver on its financial obligations, as has been the case in previous years with the UN climate secretariat and the Green Climate Fund.
“We know that some of these usual donors are considering to put something in our budget – we are also trying to get some money from the companies that are part of our initiatives… and we will see other ways that we can pursue,” he added. “I know that we can manage one way or another.”
During country statements made on Sunday afternoon, which were closed to the media, there had been expectations that China might step up to close the gap, but that did not happen.
The United Arab Emirates, Germany and other European nations are substantial government donors to IRENA, although the agency’s core budget has barely risen since 2018, documents show. That has limited its ability to expand its activities even as demand rises across developing countries and small island states for greater technical and policy support to boost renewables.
La Camera noted that, following the US decision to pull out under Donald Trump, IRENA’s council may need to propose amendments to its approved budget for 2026-2027 ahead of its next meeting in May.
Melford Nicholas, minister of information technologies, utilities and energy for Antigua and Barbuda, who is also a newly elected vice president of IRENA, told Climate Home News the US move would “not be an insignificant development” but Europeans had indicated they could help make up the shortfall.
Clean energy for “opportunity and necessity”
At the opening session of the two-day assembly, La Camera and other top officials affirmed the importance of renewable energy as the best choice for energy and economic security at a time of rising geopolitical tensions driven by fossil fuel interests.
Selwin Hart,special adviser to the UN Secretary-General on Climate Action and Just Transition, said the world is clearly changing its energy system to clean sources “not out of idealism, but out of opportunity and necessity”.
He noted that three out of four people live in countries that are net importers of fossil fuels, exposing them to geopolitical shocks, volatile prices and balance of payment pressures.
Examples of this include the rise in gas prices in Europe after Russia’s invasion of Ukraine in 2024 led to sanctions.
“The energy transition is taking place… not only based on climate considerations, but based on costs, based on competitiveness and energy security and energy independence,” Hart added. “These are the driving forces now – hardcore economic, hardcore national security [and] strategic reasons.”
In a video message, Annalena Baerbock, president of the UN General Assembly and former foreign minister of Germany, said “we are living in heavy, challenging times” – but despite setbacks and political headwinds, “the march to a renewable energy future has proven unstoppable”.
She added that global renewable capacity has now reached more than 4,400 gigawatts, almost 30 times that of 2015 when the Paris climate agreement was adopted, while a record $2.4 trillion was invested in the energy transition in 2024. “There is no way back,” she added.
However, she and Hart both noted that more needs to be done to support African countries to unlock finance for clean energy, as it lags far behind other regions and receives only around 2% of investment in the sector.
Challenges for small island states
The substantial needs of small island developing states (SIDS) are also front and centre at the IRENA Assembly, where ministers have discussed the challenges of shifting away from costly diesel and other polluting fuels while being exposed to rising climate shocks such as destructive cyclones.
Antigua and Barbuda’s minister Nicholas pointed to the difficulty of gaining insurance for renewable energy facilities as a key barrier in an era when storms can cause huge damage.
This happened in Barbuda in 2017 when Hurricane Irma wiped out a solar plant that was not insured. Governments including the United Arab Emirates and New Zealand helped to rebuild it.
Antigua and Barbuda’s Minister Melford Nicholas speaks at the IRENA 16th Assembly in Abu Dhabi, UAE, on January 11, 2026 (Photo: IRENA)
Antigua and Barbuda’s Minister Melford Nicholas speaks at the IRENA 16th Assembly in Abu Dhabi, UAE, on January 11, 2026 (Photo: IRENA)
Nicholas said SIDS are still in need of concessional finance, which could “become increasingly challenging for us” in the current international environment.
“It’s an issue, because that retards the speed at which we’re able to get to renewable energy transition,” he added, noting his country is likely to reach an energy mix of around 60% renewables by 2030 rather than the 100% it had aimed for.
Despite the obstacles, ministers from Caribbean countries like St Kitts and Nevis and Dominica showcased examples of planned geothermal plants that will enable them to phase down fossil fuels dramatically.
IRENA’s La Camera said he was optimistic the world would get very close to realising a global goal of tripling renewable energy capacity by the end of this decade, but was still lagging behind on a twin target of doubling energy efficiency by 2030.
To help catalyse a global transition away from fossil fuels, he added that IRENA would work with COP host nations on a roadmap to that end, which they are due to present at the COP31 UN climate summit in Turkey in November, as well as a potential target for electrification consistent with that plan.
Jobs in renewable energy expanded only slightly in 2024 to reach 16.6 million worldwide, new figures show, suggesting that the industry’s ability to create employment is slowing as it matures.
According to an annual report from the International Renewable Energy Agency (IRENA) and the International Labour Organization (ILO), the number of renewables jobs rose by just 2.3% between 2023 and 2024. This was partly due to Chinese solar manufacturers already producing more components than they could sell, and laying off workers to cut costs.
Other factors included a shift from rooftop solar installations to utility-scale systems in major markets like India and Germany, as well as increasing automation in the sector – a trend that is expected to accelerate with the use of robots, drones and artificial intelligence.
Employment in the sector has risen steadily from 7.3 million in 2012, when the data series began, along with the increase in solar, wind and geothermal energy, hydropower and biofuels around the world. But far fewer new jobs were created in 2024 – 400,000 – compared with 2023, which saw a jump of 2.5 million.
Even as it faces international condemnation over the Gaza war, Israel is working to boost natural gas exports and offshore exploration to strengthen its strategic and regional ties
While Trump’s aim of boosting oil production in Venezuela could worsen climate change, high costs and an oversupplied market might make investors think twice
In a foreword to the report released on Sunday, IRENA Director-General Francesco La Camera and ILO Director-General Gilbert F. Houngbo wrote that the slowdown in the rate of job creation points to “the emergence of a new phase in the energy transition”.
“Growing automation and economies of scale mean that comparatively less human labour is required for each new unit of capacity – although impacts vary across countries, technologies and segments of the renewable energy value chain,” they said.
IRENA currently projects that, with the right policies in place, the renewable energy workforce could expand to 30 million jobs by 2030. But the latest figures – which do not reflect the impact of Donald Trump’s squashing of US renewables incentives in 2025 – indicate reaching that level could be a stretch.
Michael Renner, IRENA’s head of socioeconomics and policy, told Climate Home News on the sidelines of the agency’s assembly in Abu Dhabi that, in the past 10-20 years, the renewable energy sector has been far more labour-intensive than the fossil fuel industry – which has largely been automated – but the difference is starting to narrow.
“I think renewables are still looking favourable [for job creation], and I don’t think that advantage will be lost – but I think it will be less massive, less dramatic,” he added.
Notes:
a) Includes liquid biofuels, solid biomass and biogas.
b) Direct jobs only.
c) “Others” includes geothermal energy, concentrated solar power, heat pumps (ground based), municipal and industrial waste,
and ocean energy.
Source: IRENA / Renewable Energy and Jobs
Annual Review 2025
Notes:
a) Includes liquid biofuels, solid biomass and biogas.
b) Direct jobs only.
c) “Others” includes geothermal energy, concentrated solar power, heat pumps (ground based), municipal and industrial waste,
and ocean energy.
Source: IRENA / Renewable Energy and Jobs
Annual Review 2025
Geographical imbalances
The world needs to add a huge amount of solar, wind, hydro and geothermalcapacity to meet a global goal of tripling renewable power capacity to reach 11.2 terawatts (TW) by the end of the decade. That will require installing an average of about 1.1 TW each year from 2025 to 2030, which is about double the power added in 2024, IRENA says.
In a statement on the jobs report, La Camera noted that renewable energy deployment is “booming, but the human side of the story is as important as the technological side”.
He pointed to geographical imbalances in the deployment of clean energy and related job creation. Africa has particularly struggled to attract foreign investment in building out renewables, with much of the growth currently concentrated in Asia.
“Countries that are lagging behind in the energy transition must be supported by the international community,” La Camera said. “This is essential not only to meet the goal of tripling renewable power capacity by 2030, but also to ensure that socioeconomic benefits become lived realities for all, helping to shore up popular support for the transition.”
Some countries like Nigeria are trying to boost their solar equipment manufacturing supply chains, with the government saying it plans to ban solar panel imports, and two large assembly plants announced to support public electrification programmes.
China leads on jobs but solar stumbles
In 2024, China was home to nearly half – 44% – of the world’s renewable energy jobs with an estimated 7.3 million. But in that year, employment in its solar photovoltaics (PV) sector actually contracted slightly, as five leading manufacturers cut their workforce.
This was in response to efforts by the Chinese government to curb what it has dubbed “disorderly” competition by reducing excess capacity across the solar PV supply chain, in a bid to boost prices and product quality.
Renewables jobs stayed flat in the European Union in 2024, meanwhile, at 1.8 million jobs, and India and the US saw small rises, accounting for 1.3 million and 1.1 million respectively. Brazil was also a big employer, with 1.4 million jobs, partly thanks to its biofuels industry based on soy and sugarcane.
On the impact of Trump’s efforts to roll back incentives and subsidies for green energy in the US, Renner said it will likely mean fewer new renewable power installations, with the report documenting examples of solar and wind projects that were cancelled or halted in 2025.
He also noted the dampening effects of US tariff hikes on the production of solar panels in Southeast Asia, which has led to job losses in some countries including Thailand, while others such as India have been able to increase their exports to the US thanks to relatively lower taxes on their exports.
Limited opportunities for women and people with disabilities
The report also highlights a lack of progress on increasing women workers in the renewables industry. While higher than in fossil fuels, it has plateaued at about one job in three.
Those jobs are concentrated in administrative roles, which account for 45% of female employment in renewable energy, as well as in technical positions unrelated to science, technology or engineering, such as legal work.
The report calls for greater efforts by companies, education and skills training bodies to open up more opportunities for women in clean energy, as well as for people with disabilities who face high barriers to participating in labour markets across the board, with only three in 10 being employed worldwide.
There are some positive cases where proactive policies have made a difference, such as in India’s electric vehicle industry, which has a relatively high level of women at the management level.
In Brazil, meanwhile, national legislation requires companies with more than 100 employees to reserve 2-5% of jobs for people with disabilities, including those in renewable energy.
And in Spain, energy utility Endesa and municipalities trained over 300 people with intellectual and psycho-social disabilities in tasks like vegetation management and composting at solar energy sites, with nearly 40% securing jobs after six months.
ILO’s Houngbo called for greater efforts on disability inclusion in the clean energy transition, not just as a matter of justice but also to advance resilient labour markets and sustainable development.
“This requires accessible training systems, inclusive hiring practices, and workplaces that accommodate, welcome and respond to diverse needs and respect every worker’s rights,” he added.
Climate Home News received support from IRENA to travel to Abu Dhabi to covers its 16th Assembly.
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