Yao Zhe is global policy advisor for Greenpeace East Asia.
“Overcapacity”, a geeky economic term, has recently become the new buzzword for international discussion around China’s solar and electric vehicle industries. It is also becoming one of the thorniest issues in China’s relations with other major economies.
Notably, the word was mentioned five times in the G7 Leaders Communiqué released last week, with the G7 countries framing it collectively as a global challenge.
It is a debate that was initially sparked by US Treasury Secretary Janet Yellen during her April visit to Beijing. According to her, China’s cleantech industry has excess capacities that cannot be absorbed domestically, leading to exports at depressed prices. And she stressed that this should be a concern not only for the US, but also for Europe and other emerging markets.
China strongly disagreed with this claim, while Yellen’s concern resonated in the EU, which has long focused on China’s market dominance. In short, there is an overcapacity of “overcapacities”, with neither side finding identical terms of reference. But as this debate is a harbinger of how climate solutions and political agendas will interweave, it’s worth parsing out some lessons for each side, on their own terms.
The US’ “overcapacity” claim as presented by Yellen is a non-starter in China.
China’s clean energy industry is an important point of pride internationally and a source of legitimacy domestically for Beijing. From that perspective countering the “overcapacity” claim is both emotionally and strategically important.
Strategically, this claim is being used to justify trade measures and tariffs against China’s clean energy products. Emotionally, the cleantech industry is a modern-day success story of China’s entrepreneurship and innovation. In China’s public discourse, the US “overcapacity” claims lands as a rejection of that success.
The result is a political debate in which – by design – no side can convince the other. And the lesson? This posturing is at odds with US-China climate diplomacy as we’ve known it to function in the past. Whatever objectives this approach serves, it does not include closer climate collaboration between the US and China, even as multilateral climate action at the UN level still requires them to take action in concert.
In China, discussion on “overcapacity” emerged from an ongoing conversation about how to manage investment hype. And the answer lies on the demand side.
For investors inside China at a time of challenging economics, few industries are as attractive as the clean energy industry. And business leaders have focused on the risks of hot money and breakneck expansion of clean energy manufacturing capacity for some time now, particularly in the solar industry.
This was probably the origin of “overcapacity”. But in China, this has been a familiar, almost perennial discussion of investment and industrial cycles. While the US argument equates exports to overcapacity, Chinese companies argue that it is demand that determines overcapacity, and they make investment and expansion decisions based on projections of both domestic and global demand.
That said, the size of China’s domestic market means it will remain the “base” for Chinese manufacturers. In the overseas market, the “overcapacity” claim underscores the complexity and uncertainties Chinese companies face.
For Chinese policymakers, one obvious response to the new market dynamics should be taking domestic demand to new levels. That means addressing lingering questions for China’s renewable energy future – namely, how to resolve the impact of coal. China’s power market was designed for a system dependent on coal, but it needs reform to allow wind and solar to take the central role. Injecting new political momentum to accelerate the reform will be key.
The EU has long been concerned about China’s market dominance, and the “overcapacity” debate is pushing it to decide its role in this trilateral trade and climate dynamic.
Even before this debate erupted, the EU had already begun, subtly, to diversify supply chains and build its own industrial strength, reducing dependence on Chinese products. Last week, the EU announced a maximum tariff of 38% on imported Chinese-made electric vehicles, concluding that Chinese EV makers are benefiting from “unfair subsidies”.
At this stage, it’s still unclear if this is the end of the EU’s low-key approach to date. Cultivating an EU-based clean industry hub without compromising the global response to climate change is a challenge, especially as the EU positions itself as a climate leader.
Entering the fray of US-China tension only makes this feat more complex, especially given uncertainties on the US end in an election year. How the EU approaches this climate and trade nexus will ultimately shape the trilateral dynamic among the world’s three largest carbon emitters in the coming years.
For China, where relations with the EU and other countries are concerned, it’s worth taking a step back and looking at the hidden messages in the “overcapacity” debate. Other countries want more than just Chinese products.
Climate leadership is not a buyer-seller relationship, but one between partners who want solutions that create local jobs, develop opportunities, and enable native development of a sustainable future.
China should see its role in the global clean transition as more than a manufacturing hub. The transition requires tools, technology, finance and know-how, and China has much to offer. It is time for China to think more creatively about how to leverage its industrial advantages to provide the solutions with which the world is currently under-supplied.
The post Lessons from rising tensions around “overcapacity” in China’s cleantech industry appeared first on Climate Home News.
Lessons from rising tensions around “overcapacity” in China’s cleantech industry
Climate Change
Greenpeace’s Dutch Anti-SLAPP Case Against Oil Pipeline Giant Advances
But a $345 million U.S. verdict against the environmental group hangs over the case.
A lawsuit filed by Greenpeace International against the U.S.-based fossil fuel company Energy Transfer in the Netherlands is moving forward after a Dutch court recently ruled in favor of the environmental organization in rejecting the company’s bid to toss out the case.
Greenpeace’s Dutch Anti-SLAPP Case Against Oil Pipeline Giant Advances
Climate Change
The Search for Super Reefs
Go behind the scenes with executive editor Vernon Loeb and oceans correspondent Teresa Tomassoni as they discuss the search for heat-resilient coral reefs that are somehow defying the odds to survive a warming planet.
The world has already lost more than half of its coral reefs, and most of what remains is at risk of disappearing in the next 25 years.
Climate Change
DeBriefed 19 June 2026: Bonn talks end in ‘gridlock’ | Energy’s ‘new era’ | Oceans in climate negotiations
Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Bonn talks close
‘SIDE-STEPPING AND STALLING’: UN climate talks in Bonn have ended in “gridlock”, according to Climate Home News. The outlet reported on the failure to balance developing countries’ need for climate-adaptation finance with “richer nations’ desire to move forward” on emissions cuts. It added that both topics were subject to “rule 16”, meaning no agreement could be reached and work will be pushed to the COP31 summit in Turkey. Inside Climate News quoted UN climate executive secretary Simon Stiell, who said the talks had seen “side-stepping and stalling”.
JUST TRANSITION: One “glimmer of hope” came from negotiations on achieving a “just transition”, reported Euronews. The news outlet said negotiators “made headway on operationalising the Belém-Antalya mechanism”, intended to support people in the shift to a low-carbon economy. However, Politico concluded that much of the focus in Bonn had “shift[ed] to efforts outside diplomatic talks – raising questions about the future of global climate negotiations”.
‘ATTACKING SCIENCE’: Agence France-Presse reported on the EU, Switzerland and “dozens of developing nations” warning of “attacks on science” by a “small group of fossil-fuels interests” in Bonn. Table Briefings explained that “the 1.5C target is increasingly being challenged” and the role of the UN climate-science panel – the Intergovernmental Panel on Climate Change (IPCC) – in an upcoming assessment of global climate progress “remains controversial”. See Carbon Brief’s full write-up of the talks for more detail.
US-Iran deal
PRICE DROP: The US and Iran announced that they have reached an interim agreement to halt the war and reopen the strait of Hormuz, reported Bloomberg. Oil prices have fallen, as the “long-awaited deal” began the process of “eas[ing]” the global energy crisis triggered by the conflict, according to the New York Times. The Associated Press noted that high fuel prices will “likely outlast the Iran war”.
‘OIL GLUT’: The Financial Times reported that the International Energy Agency (IEA) has forecast a “glut of oil” emerging next year, if the peace deal holds. The IEA said this would allow countries to build new strategic reserves, as they “review their energy strategies and policies in response to the crisis”, according to Reuters.
‘NEW ERA’: Agence France-Presse reported that oil and gas companies have “few illusions about a return to normal for the Gulf energy industry after more than three months of blockage”. One analyst told the newswire that the war “showed the oil and gas industry that Hormuz risk is no longer just a geopolitical headline”.
Around the world
- OCEAN MONITOR: The Trump administration is “abandoning its plan” to dismantle a $368m ocean monitoring system key for tracking climate change after a “bipartisan backlash on Capitol Hill”, reported the New York Times.
- CORAL HAVEN: The New York Times covered preliminary research, presented at the Our Ocean Conference in Kenya, suggesting there could be three times as many “coral refugia” – where corals are relatively safe from climate change – than previously thought.
- BAD CREDIT: Down to Earth reported that the first carbon credits issued under the Paris Agreement’s new Article 6.4 mechanism are “facing scrutiny over alleged links to institutions controlled by Myanmar’s military junta”.
- OIL BACKTRACK: Reuters reported that oil-and-gas company Equinor has dropped a renewable-energy target and scaled back clean investments, while another Reuters story noted that Shell is selling off its offshore wind assets.
1.1 billion
The number of children facing “at least three overlapping climate hazards”, according to a new Unicef report covered by Agence France-Presse.
Latest climate research
- Including the “permafrost carbon-climate feedback” in climate models increases the chance of exceeding “tipping elements” – such as the Greenland ice sheets, Atlantic Meridional Overturning Circulation or Amazon rainforest – by up to 50% | Environmental Research Letters
- The intensity of influenza outbreaks could decline in temperate regions, but increase in tropical areas over the next century, as the climate warms | PNAS Nexus
- European snow cover has declined by 20% for December and January since the start of the industrial era, revealing an “unprecedented ongoing shrinkage of European winters” | Communications Earth & Environment
(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 more than 2m battery electric vehicles (BEVs), 1m “plug-in” hybrids (PHEVs) and 100,000 electric vans on UK roads are already saving drivers a total of around £3bn a year, according to new Carbon Brief analysis. This amounts to savings of more than £1,100 a year in fuel costs for each BEV driver in the UK. The analysis comes amid reports in UK media this week that the government is considering “watering down” its EV sales targets.
Spotlight
Oceans rising at UN climate talks
The state of the world’s oceans is inextricably linked to the changing climate – and many delegates at UN climate talks want to see more focus on this issue, reports Carbon Brief.
Oceans are often described as the world’s “greatest ally” against climate change – absorbing 30% of carbon dioxide (CO2) emissions and most of the heat generated by those emissions.
They are also the site of important climate solutions, such as huge offshore windfarms and the shipping industry’s transition to cleaner fuels.
At the same time, the oceans themselves present a growing danger to coastal communities and sea life due to sea level rise, marine heatwaves and ocean acidification.
These diverse issues have led to growing calls within the UN climate process for more focus on oceans. During climate negotiations this week in Bonn – known as SB64 – nations and civil society had a chance to air these views during an “ocean and climate change dialogue”.
‘Elevate action’
Oceans first entered UN climate outcomes in 2019, when the final COP25 negotiated text requested a new “dialogue” on “the ocean and climate change to consider how to strengthen mitigation and adaptation action”.
The following years saw this dialogue established as an annual event. However, the political weight of these discussions has been limited.
COP31 is being co-led by Turkey and Australia, but with Pacific islands playing a supporting role. These small islands sometimes self-identify as “large ocean states”, stressing the ocean’s centrality in their societies.
In Bonn, figures from across the presidency threw their weight behind this issue. Chris Bowen, an Australian minister and incoming COP31 “president of negotiations”, told attendees:
“Australia, Turkey and the Pacific see an important opportunity to elevate ocean-based climate action.”

Strategies and finance
The two-day dialogue in Bonn involved a series of panels, statements and breakout groups.
One of the main topics was how oceans are integrated into national climate plans under the Paris Agreement, known as “nationally determined contributions” (NDCs).
Three-quarters of the latest round of NDCs mention oceans, with conservation of “blue carbon” ecosystems the most frequently described action. (Landscapes such as mangroves can both absorb CO2 and protect coastal areas.)
Delegates also discussed alignment with the UN biodiversity process, as well as ocean finance, which currently makes up less than 1% of all climate finance.
(As discussions were taking place in Bonn, country officials also gathered in Mombasa, Kenya for the 11th Our Ocean Conference. Carbon Brief’s associate editor Giuliana Viglione attended the conference and will publish a full summary shortly.)
Developing countries were clear that many of the ocean-related actions in their NDCs would depend on receiving more financial support.
‘Political momentum’
With the backing of the COP31 presidency, delegates were hopeful about where this year’s dialogue could lead.
Charles Hamilton, an advisor for the Bahamas who spoke for the Alliance of Small Island States (AOSIS) in the dialogue, told Carbon Brief that island representatives “are not traveling thousands of miles to just talk and pat ourselves on the back”. He added:
“A dialogue that just remains a dialogue is just more talk – no action.”
Given that, he said “discussions in the dialogue must move into COP decisions and the decisions must be actioned”, noting the importance of finance.
Marina Corrêa, oceans lead at WWF-Brazil, pointed to an upcoming UN climate change Standing Committee on Finance forum as a space to ramp up pressure on ocean finance.
More broadly, she wanted to see the presidencies translate their support into a “leader-level ocean initiative” that could “mainstream” oceans across negotiations.
“We have a really interesting opportunity, in terms of political momentum,” Corrêa told Carbon Brief.
Watch, read, listen
‘HOTTER THAN HELL’: An episode of the BBC’s Rare Earth podcast titled “hotter than hell” considered the issue of extreme heat, with input from experts and “people facing up to the hottest temperatures on the planet”.
NOT BROKEN?: John Drake, a professor of ecology at the University of Georgia, wrote an essay for Aeon – also re-published as a Guardian “long read” – questioning the framing of ecosystems and climate systems “breaking down”.
ON COURSE: On his Volts podcast, US climate journalist David Roberts interviewed UK climate minister Katie White, quizzing her about whether the UK will “stay the course with its climate plans”.
Coming up
- 20-28 June: London climate action week
- 21 June: Colombia presidential runoff
- 24 June: UK Climate Change Committee progress in reducing emissions 2026 report to parliament
Pick of the jobs
- Mongabay, managing editor – Africa | Salary: Unknown. Location: Global
- Contexte, environment reporter – Brussels | Salary: €45,000-€60,000. Location: Brussels
- Climate 200, communications director | Salary: Unknown. Location: Australia
- Energy Tracker Asia, energy transition correspondent | Salary: $3,000-$4,000 per month. Location: South-east Asia (remote)
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 19 June 2026: Bonn talks end in ‘gridlock’ | Energy’s ‘new era’ | Oceans in climate negotiations appeared first on Carbon Brief.
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