Martin Hession is Chair of the Article 6.4 Supervisory Body, which oversees the rules for the UN carbon market under the Paris Agreement, and Maria AlJishi is the body’s Vice Chair.
The recent adoption of new standards for the UN’s carbon market marks a key step for international climate cooperation, finally aligning offset crediting with the Paris Agreement and providing a benchmark for countries and investors in a world where all nations are expected to continuously raise their climate ambition.
As Chair and Vice-Chair of the Supervisory Body developing these rules, we are acutely aware that we serve a diverse set of actors. Our task is to steer a path that delivers climate ambition, supports country priorities, safeguards social and environmental integrity, and offers a reliable framework for investment.
At the core is a persistent question: are the rules effective in delivering real results and fair in balancing the interests of all those involved in the market?
Brazil seeks early deals on two stalled issues at Bonn climate talks
In the past two years, we’ve made important progress. We’ve adopted broad standards for how to calculate both emission reductions and emissions removals, established a system to manage the risk of emissions reversals, and introduced mandatory environmental and human rights safeguards and an independent grievance and appeals process. However, without a steady flow of investment, this progress will remain largely on paper.
Laying the foundation for greater ambition
With the adoption of the new baseline standard in May, we’ve entered a new phase, enabling more ambitious credits. We now have a clear and rigorous standard to guide the implementation of stronger crediting benchmarks. In today’s context, it offers a more realistic starting point for measuring credible emissions reductions and removals.
Under this benchmark, credits can only be claimed for reductions compared to conservative estimates of what would have occurred without the project. Projects can no longer earn credits for minor improvements over business-as-usual; they must use more conservative baselines that reflect growing climate ambition.
First carbon credit scheme for early coal plant closures unveiled
For example, a mechanism methodology may require crediting levels to be set at least 10% below historical emissions or benchmarked against best-in-class performance and then require a decline by at least 1% per year. This steady tightening ensures alignment with a net zero pathway, reduces the risk of over-crediting, and helps host countries retain more emission reductions, supporting future ambition.
The leakage standard is another important step, though more work remains to address emissions impacts at the national or sectoral level. Its goal is to make sure that projects reducing emissions in one place don’t cause emissions elsewhere. For example, if a reforestation project protects one area but displaces logging to a nearby region, the overall benefit could be lost. The standard requires projects to identify and track such indirect impacts and subtract them from the emissions cuts they claim.
Avoiding past mistakes
These technical standards are essential to ensuring environmental integrity. But their success also depends on trust and participation, particularly from countries hosting the carbon credit projects. As they weigh whether to approve credits and crediting programmes, they will understandably want to retain a share of the emissions reduction benefits from the investments. The new standards help address this, but more is needed.
The Paris Agreement Crediting Mechanism (PACM) already hardwires the roles and responsibilities of host countries into its processes. At our last meeting, we discussed how to strengthen communication and deepen engagement with host countries to ensure national policies and climate ambition are respected, and where requested, supported and enhanced.
Carbon credits have long faced scrutiny for overpromising and underdelivering. We are well aware of the need to avoid repeating past mistakes. From the outset, we’ve worked to improve on previous models, applying lessons learned.
UN approves carbon market safeguards to protect environment and human rights
The context for crediting has changed significantly since the early days of the Clean Development Mechanism (CDM), a benchmark for many voluntary programmes. While we will continue to build on CDM methodologies and experience, we must adapt them to a more ambitious framework, one that responds to host country expectations the CDM was never designed to meet.
We now move forward with renewed confidence. Our new rules allow for top-down updates to old carbon credit methodologies – meaning we can revise them centrally for key sectors. We’ve also received the first proposal for a brand-new methodology through the bottom-up process, where ideas come directly from project developers or local actors. And the first PACM credits could be issued later this year.
Scrutiny welcome
We’ve been criticised for moving slowly and for the complexity of our process. It has taken time to reach political agreement on the implementation framework for the new UN carbon market. But the positive reception of the framework we presented at the COP29 climate summit in Baku helped accelerate our progress. Thanks to the excellent work of our expert panels, we adopted detailed standards quickly. We believe these are both ambitious and clear.
Of course, there is more to do. Later this year, we’ll consider detailed rules to assess and insure against the risk of emissions reversals. We aim to see the full framework in action by early next year.
We are taking a practical, agile approach to implementation. The general standards set the direction; individual methodologies will be detailed but designed to evolve. Implementation will be phased, with space for continuous feedback and improvement.
We welcome scrutiny, not just for accountability, but as essential to our mission of fair and effective implementation for a high-integrity UN carbon market.
The post A credible UN carbon market needs rules that count – we’ve just set them appeared first on Climate Home News.
A credible UN carbon market needs rules that count – we’ve just set them
Climate Change
DeBriefed 15 August 2025: Raging wildfires; Xi’s priorities; Factchecking the Trump climate report
Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Blazing heat hits Europe
FANNING THE FLAMES: Wildfires “fanned by a heatwave and strong winds” caused havoc across southern Europe, Reuters reported. It added: “Fire has affected nearly 440,000 hectares (1,700 square miles) in the eurozone so far in 2025, double the average for the same period of the year since 2006.” Extreme heat is “breaking temperature records across Europe”, the Guardian said, with several countries reporting readings of around 40C.
HUMAN TOLL: At least three people have died in the wildfires erupting across Spain, Turkey and Albania, France24 said, adding that the fires have “displaced thousands in Greece and Albania”. Le Monde reported that a child in Italy “died of heatstroke”, while thousands were evacuated from Spain and firefighters “battled three large wildfires” in Portugal.
UK WILDFIRE RISK: The UK saw temperatures as high as 33.4C this week as England “entered its fourth heatwave”, BBC News said. The high heat is causing “nationally significant” water shortfalls, it added, “hitting farms, damaging wildlife and increasing wildfires”. The Daily Mirror noted that these conditions “could last until mid-autumn”. Scientists warn the UK faces possible “firewaves” due to climate change, BBC News also reported.
Around the world
- GRID PRESSURES: Iraq suffered a “near nationwide blackout” as elevated power demand – due to extreme temperatures of around 50C – triggered a transmission line failure, Bloomberg reported.
- ‘DIRE’ DOWN UNDER: The Australian government is keeping a climate risk assessment that contains “dire” implications for the continent “under wraps”, the Australian Financial Review said.
- EXTREME RAINFALL: Mexico City is “seeing one of its heaviest rainy seasons in years”, the Washington Post said. Downpours in the Japanese island of Kyushu “caused flooding and mudslides”, according to Politico. In Kashmir, flash floods killed 56 and left “scores missing”, the Associated Press said.
- SOUTH-SOUTH COOPERATION: China and Brazil agreed to “ensure the success” of COP30 in a recent phone call, Chinese state news agency Xinhua reported.
- PLASTIC ‘DEADLOCK’: Talks on a plastic pollution treaty have failed again at a summit in Geneva, according to the Guardian, with countries “deadlocked” on whether it should include “curbs on production and toxic chemicals”.
15
The number of times by which the most ethnically-diverse areas in England are more likely to experience extreme heat than its “least diverse” areas, according to new analysis by Carbon Brief.
Latest climate research
- As many as 13 minerals critical for low-carbon energy may face shortages under 2C pathways | Nature Climate Change
- A “scoping review” examined the impact of climate change on poor sexual and reproductive health and rights in sub-Saharan Africa | PLOS One
- A UK university cut the carbon footprint of its weekly canteen menu by 31% “without students noticing” | Nature Food
(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)
Captured
Factchecking Trump’s climate report

A report commissioned by the US government to justify rolling back climate regulations contains “at least 100 false or misleading statements”, according to a Carbon Brief factcheck involving dozens of leading climate scientists. The report, compiled in two months by five hand-picked researchers, inaccurately claims that “CO2-induced warming might be less damaging economically than commonly believed” and misleadingly states that “excessively aggressive [emissions] mitigation policies could prove more detrimental than beneficial”80
Spotlight
Does Xi Jinping care about climate change?
This week, Carbon Brief unpacks new research on Chinese president Xi Jinping’s policy priorities.
On this day in 2005, Xi Jinping, a local official in eastern China, made an unplanned speech when touring a small village – a rare occurrence in China’s highly-choreographed political culture.
In it, he observed that “lucid waters and lush mountains are mountains of silver and gold” – that is, the environment cannot be sacrificed for the sake of growth.
(The full text of the speech is not available, although Xi discussed the concept in a brief newspaper column – see below – a few days later.)
In a time where most government officials were laser-focused on delivering economic growth, this message was highly unusual.
Forward-thinking on environment
As a local official in the early 2000s, Xi endorsed the concept of “green GDP”, which integrates the value of natural resources and the environment into GDP calculations.
He also penned a regular newspaper column, 22 of which discussed environmental protection – although “climate change” was never mentioned.
This focus carried over to China’s national agenda when Xi became president.
New research from the Asia Society Policy Institute tracked policies in which Xi is reported by state media to have “personally” taken action.
It found that environmental protection is one of six topics in which he is often said to have directly steered policymaking.
Such policies include guidelines to build a “Beautiful China”, the creation of an environmental protection inspection team and the “three-north shelterbelt” afforestation programme.
“It’s important to know what Xi’s priorities are because the top leader wields outsized influence in the Chinese political system,” Neil Thomas, Asia Society Policy Institute fellow and report co-author, told Carbon Brief.
Local policymakers are “more likely” to invest resources in addressing policies they know have Xi’s attention, to increase their chances for promotion, he added.
What about climate and energy?
However, the research noted, climate and energy policies have not been publicised as bearing Xi’s personal touch.
“I think Xi prioritises environmental protection more than climate change because reducing pollution is an issue of social stability,” Thomas said, noting that “smoggy skies and polluted rivers” were more visible and more likely to trigger civil society pushback than gradual temperature increases.
The paper also said topics might not be linked to Xi personally when they are “too technical” or “politically sensitive”.
For example, Xi’s landmark decision for China to achieve carbon neutrality by 2060 is widely reported as having only been made after climate modelling – facilitated by former climate envoy Xie Zhenhua – showed that this goal was achievable.
Prior to this, Xi had never spoken publicly about carbon neutrality.
Prof Alex Wang, a University of California, Los Angeles professor of law not involved in the research, noted that emphasising Xi’s personal attention may signal “top” political priorities, but not necessarily Xi’s “personal interests”.
By not emphasising climate, he said, Xi may be trying to avoid “pushing the system to overprioritise climate to the exclusion of the other priorities”.
There are other ways to know where climate ranks on the policy agenda, Thomas noted:
“Climate watchers should look at what Xi says, what Xi does and what policies Xi authorises in the name of the ‘central committee’. Is Xi talking more about climate? Is Xi establishing institutions and convening meetings that focus on climate? Is climate becoming a more prominent theme in top-level documents?”
Watch, read, listen
TRUMP EFFECT: The Columbia Energy Exchange podcast examined how pressure from US tariffs could affect India’s clean energy transition.
NAMIBIAN ‘DESTRUCTION’: The National Observer investigated the failure to address “human rights abuses and environmental destruction” claims against a Canadian oil company in Namibia.
‘RED AI’: The Network for the Digital Economy and the Environment studied the state of current research on “Red AI”, or the “negative environmental implications of AI”.
Coming up
- 17 August: Bolivian general elections
- 18-29 August: Preparatory talks on the entry into force of the “High Seas Treaty”, New York
- 18-22 August: Y20 Summit, Johannesburg
- 21 August: Advancing the “Africa clean air programme” through Africa-Asia collaboration, Yokohama
Pick of the jobs
- Lancaster Environment Centre, senior research associate: JUST Centre | Salary: £39,355-£45,413. Location: Lancaster, UK
- Environmental Justice Foundation, communications and media officer, Francophone Africa | Salary: XOF600,000-XOF800,000. Location: Dakar, Senegal
- Politico, energy & climate editor | Salary: Unknown. Location: Brussels, Belgium
- EnviroCatalysts, meteorologist | Salary: Unknown. Location: New Delhi, India
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 15 August 2025: Raging wildfires; Xi’s priorities; Factchecking the Trump climate report appeared first on Carbon Brief.
DeBriefed 15 August 2025: Raging wildfires; Xi’s priorities; Factchecking the Trump climate report
Climate Change
New York Already Denied Permits to These Gas Pipelines. Under Trump, They Could Get Greenlit
The specter of a “gas-for-wind” compromise between the governor and the White House is drawing the ire of residents as a deadline looms.
Hundreds of New Yorkers rallied against new natural gas pipelines in their state as a deadline loomed for the public to comment on a revived proposal to expand the gas pipeline that supplies downstate New York.
New York Already Denied Permits to These Gas Pipelines. Under Trump, They Could Get Greenlit
Climate Change
Factcheck: Trump’s climate report includes more than 100 false or misleading claims
A “critical assessment” report commissioned by the Trump administration to justify a rollback of US climate regulations contains at least 100 false or misleading statements, according to a Carbon Brief factcheck involving dozens of leading climate scientists.
The report – “A critical review of impacts of greenhouse gas emissions on the US climate” – was published by the US Department of Energy (DoE) on 23 July, just days before the government laid out plans to revoke a scientific finding used as the legal basis for emissions regulation.
The executive summary of the controversial report inaccurately claims that “CO2-induced warming might be less damaging economically than commonly believed”.
It also states misleadingly that “excessively aggressive [emissions] mitigation policies could prove more detrimental than beneficial”.
Compiled in just two months by five “independent” researchers hand-selected by the climate-sceptic US secretary of energy Chris Wright, the document has sparked fierce criticism from climate scientists, who have pointed to factual errors, misrepresentation of research, messy citations and the cherry-picking of data.
Experts have also noted the authors’ track record of promoting views at odds with the mainstream understanding of climate science.
Wright’s department claims the report – which is currently open to public comment as part of a 30-day review – underwent an “internal peer-review period amongst [the] DoE’s scientific research community”.
The report is designed to provide a scientific underpinning to one flank of the Trump administration’s plans to rescind a finding that serves as the legal prerequisite for federal emissions regulation. (The second flank is about legal authority to regulate emissions.)
The “endangerment finding” – enacted by the Obama administration in 2009 – states that six greenhouse gases are contributing to the net-negative impacts of climate change and, thus, put the public in danger.
In a press release on 29 July, the US Environmental Protection Agency said “updated studies and information” set out in the new report would “challenge the assumptions” of the 2009 finding.
Carbon Brief asked a wide range of climate scientists, including those cited in the “critical review” itself, to factcheck the report’s various claims and statements.
The post Factcheck: Trump’s climate report includes more than 100 false or misleading claims appeared first on Carbon Brief.
https://www.carbonbrief.org/factcheck-trumps-climate-report-includes-more-than-100-false-or-misleading-claims/
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