The retreat of sea ice in the Arctic has long been a prominent symbol of climate change.
Observations reveal that Arctic sea ice extent at the end of summer has halved, since satellite records began in the late 1970s.
Yet, since the late 2000s, the pace of Arctic sea ice loss has slowed markedly, with no statistically significant decline for about 20 years.
In new research, published in Geophysical Research Letters, my colleagues and I explore the reasons for the recent slowdown of Arctic sea ice – and turn to climate models to understand what might happen next.
Our findings show that, rather than being an unexpected or rare event, climate model simulations suggest we should expect periods like this to occur relatively frequently.
This current slowdown is likely caused by natural fluctuations of the climate system – just as they played a part in an acceleration of sea ice loss in the decades prior.
Were it not for human-caused warming, it is likely that sea ice would have increased over this period.
According to our simulations, the slowdown could even last for another five or 10 years – even as the world continues to warm.
Widespread slowdown
The changes in the Arctic are one of the most clear and well-known indicators of a warming climate.
With the Arctic warming up to four times the rate of the global average, the region has lost more than 10,000 cubic kilometres of sea ice since the 1980s. (The volume of ice lost is roughly equivalent to 4bn Olympic swimming pools).
Arctic sea ice reached its smallest extent on record in September 2012, dwindling to 3.41m square kilometres (km2). This triggered discussions of when the Arctic might see its first “ice-free” summer, where sea ice extent drops below 1m km2.
Research has shown that human-caused warming is responsible for up to two-thirds of this decline, with the remainder down to natural fluctuations in the climate system, also known as “internal climate variability”.
Despite the record low of 2012, satellite data reveals a widespread slowdown in Arctic sea ice loss over the past two decades.
Climate model simulations of Arctic sea ice thickness and volume further reinforce these observations, indicating little or no significant decline over the past 15 years.
This data is laid out in the charts below, which show average sea ice extent in September (left) and for the whole year (middle), as well as how annual average sea ice volume differs from the long-term average (right).
(September is typically the point in the year where sea ice reaches its annual minimum, at the end of the Arctic summer.)
The coloured lines indicate that the data originates from the National Snow and Ice Data Centre (NSIDC, orange), the Ocean and Sea Ice Satellite Application Facility (OSISAF, red) and the Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS, blue).
These observational records show how the precipitous decline in sea ice seen over much of the satellite data has slowed since the late 2000s.
It also shows that the slowdown is not limited to summer months, but is occurring year-round.
Our study is not the first to highlight this slowdown – several recent studies have also examined various aspects of this phenomenon. Meanwhile, a 2015 paper was remarkably prescient in suggesting such a slowdown could occur.
Is the slowdown surprising?
The loss of sea ice around the north pole is both a cause and effect of Arctic amplification – the term given to the rapid warming in the region.
Melting snow and ice reduces the reflectiveness, or “albedo”, of the Arctic’s surface, meaning less incoming sunlight is reflected back out to space. This causes greater warming and even more melting of ice and snow.
This “surface-albedo feedback” is one of several drivers of Arctic amplification.
Given global warming is caused by the continued rise in greenhouse gas emissions, it might seem puzzling – or even impossible – that Arctic sea ice loss could slow down.
However, the recent generations of climate models used for the Coupled Model Intercomparison Project (CMIP) – the international modelling effort that feeds into the influential reports from the Intergovernmental Panel on Climate Change (IPCC) – illustrate why this might be happening.
Models from CMIP5 and CMIP6, which simulate the historical period and explore different future warming scenarios, indicate that slowdowns in Arctic sea ice loss lasting multiple decades are relatively common – happening in roughly 20% of model runs.
This is due to natural variability in the climate system, which can temporarily counteract decline of sea ice – even under high-emission scenarios.
One way that climate scientists investigate natural variability is by running multiple simulations of a model, each with identical levels of human-caused emissions of carbon dioxide, aerosols and methane. These are known as “ensembles”.
Due to the chaotic nature of the climate system, which results in different phases of natural variability, the different model runs produce different outcomes – even if the long-term climate change signal from human activity remains constant.
Large ensembles help us to understand how to interpret the Earth’s observed climate record, which has been influenced by both human-induced climate change and natural variations.
In our research, we examine how many individual model runs within the ensemble exhibit a similar or greater slowdown in sea ice loss than the observed record over 2005-24.
The models show that natural climate variability can accelerate sea ice loss, as seen during the dramatic record-lows in 2007 and 2012. However, this natural variability can also temporarily slow the longer-term downward trend.
The primary suspects behind this multi-decade variability are natural fluctuations linked to the tropical Pacific and the North Atlantic, although the precise causes are yet to be quantified.
For example, a shift from the positive, warm phase to the negative, cool phase of a natural cycle in the Interdecadal Pacific Oscillation is associated with bringing much cooler waters close to the North American coastline and into the Arctic. This could potentially lead to sea ice growth.
What might happen to Arctic sea ice cover next?
So how long could this current slowdown persist?
Climate model simulations suggest the current slowdown might continue for another five or 10 years.
However, there is an important caveat: slowdowns like this often set the stage for faster declines later.
Climate models suggest that when the slowdown inevitably ends, the rate of sea ice loss could rapidly accelerate.
Thousands of simulations analysed in our research reveal that September sea ice loss ramps up at a rate of more than 500,000km2 per decade after prolonged periods of minimal sea ice loss.
This would equate to more than 10% of current sea ice cover in September.
An analogy of Arctic sea ice extent behaving like a ball bouncing downhill – set out in a 2015 Carbon Brief article by Prof Ed Hawkins – is particularly apt here.
Just like the ball – which eventually reaches the bottom due to gravity, despite an erratic journey – Arctic sea ice loss may temporarily seem to defy expectations at present.
Ultimately, however, sea ice loss will resume, reflecting the underlying human-induced warming trend.
While it may seem contradictory that Arctic sea ice loss can slow even as global temperatures climb, climate models clearly show that such periods are expected parts of climate variability.
As a result, the recent slowdown in Arctic sea ice does not signal an end to climate change or lessen the urgency of cutting greenhouse gas emissions, if global goals are to be met.
While the current slowdown might persist for some years to come, when sea ice loss resumes, it could do so with renewed intensity.
The post Guest post: Why the recent slowdown in Arctic sea ice loss is only temporary appeared first on Carbon Brief.
Guest post: Why the recent slowdown in Arctic sea ice loss is only temporary
The “undervaluing” of nature by businesses is fuelling its decline and putting the global economy at risk, according to a major new report.
An assessment from the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) outlines more than 100 actions for measuring and reducing impacts on nature across business, government, financial institutions and civil society.
A co-chair of the assessment says that nature loss is one of the most “serious threats” to businesses, but the “twisted reality is that it often seems more profitable to businesses to degrade biodiversity than to protect it”.
The “business and biodiversity” report says that global “finance flows” of more than $7tn (£5.1tn) had “direct negative impacts on nature” in 2023.
The new findings were put together by 79 experts from around the world over the course of three years, in what IPBES described as a “fast-track” assessment.
IPBES is an independent body that gives scientific advice to policymakers about biodiversity and ecosystems.
This is the “first report of its kind” to provide guidance on how businesses can contribute to 2030 nature goals, says IPBES executive secretary Dr Luthando Dziba in a statement.
Below, Carbon Brief explains four key findings from the “summary for policymakers” (SPM), which outlines the main messages of the report.
The full report is due to be released in the coming months after final edits are made.
- Businesses both depend on, and harm, nature
- Current practices ‘do not support’ efforts to halt and reverse biodiversity loss
- Businesses can act now to address their impacts on nature
- Government policies can drive a ‘just and sustainable future’ for nature and people
1. Businesses both depend on, and harm, nature
Businesses of all sizes rely on nature in one way or another, says the report.
The SPM outlines that biodiversity provides many of the goods and services businesses need, such as raw materials from the environment or controlled water flows to reduce flooding during wet seasons and provide water in dry seasons.
Biodiversity also “underpins genetic diversity” that informs the development of products in many industries, including pharmaceuticals and cosmetics.
Individual businesses often do not address their impacts and dependencies on nature, “in part due to their lack of awareness”, the SPM says.
They also often do not have the data or knowledge to “quantify their impacts on dependencies on biodiversity and much of the relevant scientific literature is not written for a business audience”, the report claims. It adds:
“Lack of transparency across value chains, including of the risks and opportunities related to the sustainability of resource extraction, use, reuse and waste management, is a further barrier to action.”
The report says it is well established that businesses depend on biodiversity, but also that the actions of businesses “continue to drive declines in biodiversity and nature’s contributions to people”.
It adds that the size of a business “does not always reflect the magnitude of its impacts”, with companies in sectors such as agriculture, forestry, fishing, electricity, energy and mining having “relatively high” direct impacts on nature.
A “failure” to account for nature as the economy has expanded over the past two centuries has “led to its degradation and unprecedented rates of biodiversity loss”, the SPM says. It adds:
“The decline in biodiversity and nature’s contributions to people has become a critical systemic risk threatening the economy, financial stability and human wellbeing with implications for human rights.”
It is well established that nature loss as a result of “unsustainable use” threatens the “ability of businesses, local economies and whole sectors to function”, the report details.
These risks and others – such as extreme weather events and critical changes to Earth systems – are “among the highest-ranked global risks over the next 10 years”, it adds.
The SPM notes further that it is well established that risks around climate change and biodiversity loss “may interact to amplify social and economic impacts”.
These risks have “disproportionate impacts on developing countries whose economies are more reliant on biodiversity and have more limited technical and financial capacity to absorb shocks”, the report adds.
2. Current practices ‘do not support’ efforts to halt and reverse biodiversity loss
The SPM says that it is well established that current political and economic practices “perpetuate business as usual and do not support the transformative change required to halt and reverse biodiversity loss”.
These practices have “commonly ignored or undervalued biodiversity, creating tension between business actions and the conservation and sustainable use of biodiversity”, the report continues.
For example, the report says there is established but incomplete evidence that “time pressures on decision-making and timescales for investment returns and reporting by businesses – with an emphasis on quarterly earnings or annual reporting – are shorter than many ecological cycles”.
This prevents businesses from “adequately” considering nature loss in decision-making, says the SPM.
There is well established evidence that businesses fail to assign adequate value to “biodiversity and many of nature’s contributions to people, such as filtration of pollutants, climate regulation and pollination”, it continues.
As a result, “businesses bear little or no financial cost for negative impacts and may not generate revenue from positive impacts on biodiversity”, leading to “insufficient incentives for businesses to act to conserve, restore or sustainably use biodiversity”.
Prof Stephen Polasky, co-chair of the assessment and a professor of ecological and environmental economics at the University of Minnesota, said in a statement:
“The loss of biodiversity is among the most serious threats to business. Yet the twisted reality is that it often seems more profitable to businesses to degrade biodiversity than to protect it. Business as usual may once have seemed profitable in the short term, but impacts across multiple businesses can have cumulative effects, aggregating to global impacts, which can cross ecological tipping points.”
It is well established that policies from governments can “further accelerate biodiversity decline”, the SPM says.
It notes that, in 2023, global public and private financial spending with direct negative impacts on nature was estimated at $7.3tn.
This figure includes public subsidies that are harmful to nature (around $2.4tn) and private investment in high-impact sectors ($4.9tn), says the report.
Industries harmful to nature include fossil-fuel extraction, mining, deforestation and large-scale meat farming and fishing.
In contrast, just $220bn in public and private finance was directed to activities that contribute to protecting and sustainably using nature in 2023, adds the report.
(In recognition of the need to address public spending on activities that are destructive to nature, countries agreed to reduce biodiversity-harming subsidies by at least $500bn by 2030 as part of a global pact made in 2022.)
There are additional “barriers to action” facing businesses, ranging from challenging social norms to a lack of capacity, data or technology. These are summarised in the table below.
“These barriers do not affect all actors equally and may disproportionately affect small and medium-sized businesses and financial institutions in developing countries,” adds the report.
3. Businesses can act now to address their impacts on nature
The SPM says it is well established that the “transformative change” required to halt and reverse biodiversity loss requires action from “all businesses”.
However, the report continues that it is also well established that the current level of business action is “insufficient” to deliver this “transformative change”. This is, in part, because the “enabling environment is missing”, it says.
IPBES says all businesses have a responsibility to act, even if this responsibility is not shared “evenly”.
“Priority actions” that businesses should take differ depending on the size of the firm, the sector in which it operates in, as well as the company structure and its “relationship with biodiversity”, the report notes.
The exact actions businesses should pursue also depends on companies’ “degree of control and influence over stakeholders”, it says.
According to the report, firms can act across four “decision-making levels” – corporate, operations, value chain and portfolio – to measure and address impacts on biodiversity.
(“Corporate” refers to decisions focused on overarching strategy, governance and direction of the business; “operations” to day-to-day activities; “value chain” to the system and resources required to move a product or service from supplier to customer; and “portfolio” to investments and business assets).
The SPM sets out a series of examples for how businesses can act across all four levels. These are summarised in the table below.
At a corporate level, the report notes that firms can establish ambitious governance and frameworks that can then have a ripple effect across the other levels, according to the report. This includes the integration of biodiversity commitments and targets into corporate strategy.
The SPM says that corporate biodiversity targets are “most effective” when they are aligned with “national and global biodiversity objectives” and “take into consideration a business’s impacts and dependencies on biodiversity and nature’s contributions to people”.
At an operations level, businesses should focus on ensuring that their operations are located and managed in a way that benefits biodiversity, IPBES says. Environmental and social impact assessments and management plans that are supported by “credible monitoring of both actions and biodiversity outcomes” can underpin this effort, the SPM notes.
It says it is well established that using the “mitigation hierarchy” framework can help businesses deliver “lasting outcomes on the ground”. (The framework guides users towards limiting as far as possible the negative impacts on biodiversity from development projects by first avoiding, then minimising, restoring and offsetting impacts.)
Next, the report notes there are actions businesses can take to drive change within its broader spheres of influence, including suppliers, retailers, consumers and peers within industry. This is important, the SPM notes, as significant impacts and dependencies on biodiversity and nature “accrue” across the lifecycle of products or services, especially those that rely on raw materials.
The report notes there is established but incomplete evidence that efforts to “map” company value chains and improve traceability by linking products and materials to suppliers, locations and impacts can help “identify risks and prioritise actions”.
While noting that “mapping” beyond direct suppliers “often remains challenging” for businesses, the report adds:
“Examples at the corporate and value chain levels exist, such as companies in the chocolate industry that have made advances in recording biodiversity dependencies to improve business decisions through full traceability of materials and improved supplier control mechanisms.”
Elsewhere, the SPM notes that there is also established but incomplete evidence that consumer-focused measures – such as product labelling, education and incentives – can “shape behaviour and improve transparency”. However, it cautions that the effectiveness of these strategies is “constrained by consumer scepticism, certification costs and business models reliant on unsustainable consumption”.
The SPM also highlights that, at a “portfolio” level, financial institutions can shift finance away from harmful activities – for instance, companies whose products drive deforestation – and towards business activities with positive impacts for biodiversity and nature.
Speaking to Carbon Brief, Matt Jones, co-chair of the report, explains the rationale behind including options for how businesses can address biodiversity impacts in the document:
“Businesses and governments in different countries are coming at this from a very different perspective. So we can’t present a set of really prescriptive ‘how tos’…but we can present a huge number of options for action that businesses, governments, financial institutions and civil society and other actors can all take.”
Elsewhere, the report says it is well established that “robust, transparent and credible reporting of actions and outcomes” is required to “inspire others”.
4. Government policies can drive a ‘just and sustainable future’ for nature and people
Both governments and financial institutions can set policies and create incentives to protect biodiversity and stem its decline, says the SPM.
According to the report, the types of policies that governments can put in place that have an influence over business include:
- Fiscal policies, such as subsidies and taxes.
- Land use or marine spatial planning and zoning, such as designating new national parks or areas protected for nature.
- Permitting for business activities that affect nature – for example, by requiring environmental impact assessments.
- Public procurement policy (rules for how governments purchase goods and services).
- Controls on advertising and the creation of standards to prevent “greenwashing”.
Governments can also promote action through paying for ecosystem services, creating environmental markets and through “multilateral benefit-sharing mechanisms”, which set out rules for ensuring profits from nature are shared equally, says the SPM.
It says this includes the Cali Fund, a fund that businesses can voluntarily pay into after reaping benefits from genetic resources found in biodiverse countries.
(The fund was agreed in 2024 with expectations that it could generate up to billions of dollars for conservation, but it has so far only attracted $1,000.)
Governments could also promote action by phasing out or reforming subsidies that are harmful for nature, as well as fostering positive incentives, according to the report.
Overall, governments can work with other actors to create an “enabling environment” to “incentivise actions that are beneficial for businesses, biodiversity and society for a just and sustainable future”, says the SPM. It adds:
“Creation of an enabling environment that provides incentives for the conservation and sustainable use of biodiversity and nature’s contributions to people could align what is profitable with what is good for biodiversity and society.
“Creating this enabling environment would result in businesses and financial institutions being positive agents of change in transforming to a just and sustainable economic system, by addressing their impacts on biodiversity loss, climate change and pollution, which are all interconnected.”
The post IPBES: Four key takeaways on how nature loss threatens the global economy appeared first on Carbon Brief.
IPBES: Four key takeaways on how nature loss threatens the global economy
Countries responsible for climate change could be required to pay “full and prompt reparation” for the damage they have caused, under a new United Nations resolution being pursued by the Pacific island state of Vanuatu, an initial draft shows.
The resolution seeks to turn into action last year’s landmark advisory opinion from the International Court of Justice (ICJ), which found that states have a legal obligation to prevent climate harm and that breaches of this duty could expose them to compensation claims from affected countries.
Under the “zero draft” of the resolution seen by Climate Home News, the UN’s General Assembly, its main policy-making body, would also demand that countries stop any “wrongful acts” contributing to rising emissions, which may include the production and licensing of planet-heating fossil fuels.
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Countries would also be called upon to respect their legal obligations by enacting national climate plans consistent with limiting global warming to 1.5C and by adopting appropriate policies, including measures to “ensure a rapid, just and quantified phase-out of fossil fuel production and use”, the document shows.
End of March vote targeted
The draft, meant as a starting point for negotiations, was circulated last week by the government of Vanuatu following discussions with a dozen nations, including the Netherlands, Colombia and Kenya.
Countries are expected to take part in informal consultations between February 13-17 aimed at agreeing on wording that would secure broad support among UN member states, according to a statement from Vanuatu, which also led the diplomatic drive for the ICJ’s advisory opinion. A vote on the follow-up resolution could take place by the end of March, it added.
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Ralph Regenvanu, Vanuatu’s climate minister, said respecting the court’s decision is “essential for the credibility of the international system and for effective collective action”.
“At a time when respect for international law is under pressure globally, this initiative affirms the central role of the International Court of Justice and the importance of multilateral cooperation,” he added in written comments.
New damage register and reparation mechanism
If adopted in its current form, the draft resolution would also create an “International Register of Damage”, which is described as a comprehensive and transparent record of evidence on loss and damage linked to climate change.
It would also ask the UN secretary-general to put forward proposals for a climate reparation mechanism that could coordinate and facilitate the resolution of compensation claims and promote financial models to help cover climate-related damage.
The fledgling Fund for Responding to Loss and Damage (FRLD) – set up under the UN climate change regime – is set to hand out money to the first set of initiatives aimed at addressing climate-driven destruction later this year. However, the just-over $590 million currently in the fund’s coffers is dwarfed by the scale of need in developing countries, with loss and damage costs estimated to reach up to $400 billion a year by 2030.
Like other small island nations, Vanuatu is among the world’s most vulnerable countries to the effects of climate change, while having contributed the least to global warming. Last year’s ICJ decision stemmed from a March 2023 resolution led by the Pacific nation asking the world’s top court to define countries’ legal obligations in relation to climate change.
Regenvanu said in September 2025 that it was important to follow up the ICJ ruling with a new UNGA resolution because it could be approved by a majority vote, while progress can be blocked in other fora like the UN climate negotiations that require consensus for decisions.
The post Vanuatu pushes new UN resolution demanding full climate compensation appeared first on Climate Home News.
Vanuatu pushes new UN resolution demanding full climate compensation
Even the busiest streets of Shanghai have become noticeably quieter as sales of electric vehicles (EVs) skyrocketed in China, with charging points mushrooming in residential compounds, car parks and service stations across the megacity.
Many Chinese drivers have upgraded their conventional vehicles to electric ones – or already replaced old EVs with newer models – incentivised by the government’s generous trade-in policies, or tempted by the latest hi-tech features such as controls powered by artificial intelligence (AI).
“Different from conventional cars, EVs are more like fast-moving consumer goods, like smartphones,” explained Mo Ke, founder and chief analyst of Tianjin-based battery-research firm, RealLi Research. Their digital systems can become outdated quickly, so Chinese people typically change their EVs after five or six years while a conventional car can be driven much longer, he told Climate Home News.
EV sales surpassed 16 million in China last year. Roughly 10% of all vehicles on the road were electric, and half of all new vehicles sold carried a green EV number plate, with an average of 45,000 EVs rolling off the production lines each day.
But while fast-growing EV uptake is good news for Chinese EV and battery manufacturers, it is creating a huge volume of spent batteries.
Tsunami of spent batteries
Last year, China generated nearly 400,000 tonnes of old or damaged power batteries, largely consisting of vehicle batteries, according to government data. That is projected to rise to one million tonnes per year in 2030, officials forecast.
The growing waste problem has spurred the government to launch a series of new policies aimed at regulating the country’s battery recycling industry, which though well-established is marked by a high degree of informality – especially in the lucrative repurposing sector where discarded EV batteries are given a new lease of life in less energy-intensive uses, such as power storage.
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China is determined to build a “standardised, safe and efficient” recycling system for batteries, Wang Peng, a director at China’s Ministry of Industry and Information Technology, told a press conference as the government launched a recycling industry push in mid-January.
A policy paper published by the government last month detailed Beijing’s plans to mandate end-of-life recycling for EVs together with their batteries to prevent them from entering the grey, informal market, and establish a digital system to track the lifecycle of every battery manufactured in the country. Under the plans, EV and battery makers will be held responsible for recycling the batteries they produce and sell.
“The volume of the Chinese market is too big, so it has to take actions ahead of other countries,” Mo said, adding that he expected the government to release more details about implementation of the plans in the near future.
Critical minerals choke point
China’s strategy for the battery recycling sector could also prove a boon for the world’s largest battery producer by bolstering its supply of minerals such as lithium, cobalt, nickel and manganese.
Along with the looming large-scale battery retirement, policymakers’ focus on battery recycling also reflects concern about critical minerals supplies, said Li Yifei, assistant professor of environmental studies at New York University Shanghai. “The government also felt the increasing pressure of securing resources,” he told Climate Home News.
“When you set up an efficient battery-recycling system, you essentially secure a new source for critical minerals, and that can help you enhance economic security. That’s why the industry is so important,” Lin Xiao, chief executive of Botree Recycling Technologies, a Chinese company offering battery-recycling solutions, told Climate Home News.
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China dominates global refining of several minerals critical for producing EV batteries, but it still relies on imports of the raw materials – a choke point Beijing is acutely aware of, industry experts say.
China imports more than 90% of its cobalt, nickel and manganese, which are important ingredients for EV batteries, Hu Song, a senior researcher with the state-run China Automotive Technology and Research Centre, told China’s CCTV state broadcaster in June 2025. For lithium, the figure was around 60% in 2024, according to a separate report.
“If [those] resources cannot be recycled, then we will keep facing strangleholds in the future,” Hu said.
Big players gain ground
Spent EV batteries can be reused in settings that have lower energy requirements, such as in two-wheelers or energy-storage systems. When they become too depleted for repurposing, they can be scrapped and shredded into “black mass”, a powdery mixture containing valuable metals that can be recovered.
Reflecting the size of China’s EV market, the country already dominates global battery recycling capacity. It is home to 78% of the world’s battery pre-treatment capacity, which is for scrapping and shredding, and 89% of the capacity for refining black mass, according to 2025 forecasts by Benchmark Mineral Intelligence, a UK firm tracking battery supply chains.
A number of large corporate players have emerged in the sector in recent years.
Huayou Cobalt, a major producer of battery minerals, has built a business model for recycling, repurposing and shredding old batteries, as well as refining black mass and making new batteries using recovered materials.
It recently signed a deal with Encory, a joint venture between BMW and Berlin-based environmental service provider Interzero, to develop cutting-edge battery-recycling technologies, with their first joint factory set to open in China this year.
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Suzhou-based Botree Recycling Technologies has developed various solutions to turn retired power batteries into new ones. Meanwhile, Brunp Recycling, the recycling arm of Chinese battery giant CATL, has built large factories to recycle lithium iron phosphate (LFP) batteries, a type of lithium battery that does not use nickel or cobalt, as well as nickel manganese cobalt (NMC) batteries, which are more popular outside of China.
But Mo, of RealLi Research, said much remains to be done to regulate and formalise the battery recycling industry.
Underground workshops
Across China, small underground workshops plague the repurposing sector, rebundling depleted batteries for sale without following industry standards or complying with health and safety requirements.
Because these operators have lower operational costs, they are able to offer higher prices to EV owners to buy their old batteries, undercutting formal recycling companies.
“This creates distortions in the market where legitimate players, who invest in proper detection, hazardous waste treatment and compliance, struggle to compete purely on price,” a spokesperson at CATL, the world’s largest battery manufacturer, told Climate Home News.
Despite such challenges, CATL’s Brunp subsidiary produced 17,100 tonnes of lithium in 2024 from the 128,700 tonnes of depleted batteries it recycled that year, according to CATL’s annual report.
Recycling expertise in demand
Since it was founded in 2019, Botree has formed partnerships with several major clients, which together recycle about half of China’s power batteries, the company’s CEO Lin said.
As other countries grapple with rising volumes of spent batteries, Chinese recyclers are also finding new foreign markets for their know-how.
Botree has joined forces with Spanish consulting firm ILUNION and renewable energy company EFT-Systems to build a factory to recycle LFP batteries in Valladolid.
The plant, scheduled to start operation in 2027, will be able to recycle 6,000 tonnes of LFPs annually when it opens, accounting for roughly 15% of demand in the Spanish market.
“(The companies) tell us what batteries they recycle and what battery materials they want to regenerate,” Lin said. “We can design a complete process for them.”
The post China maximises battery recycling to shore up critical mineral supplies appeared first on Climate Home News.
China maximises battery recycling to shore up critical mineral supplies
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