The non-profit in charge of Peru’s 25-year-old Cordillera Azul National Park (PNCAZ) turned to carbon finance over a decade ago to sustain its operations, creating a REDD+ mega-project – but following a turbulent few years beset with baseline challenges, methodology questions, and litigation surrounding free, prior, and informed consent (FPIC) from Indigenous communities, it is mulling its next steps.

OAE effectiveness - A new modelling study published in Biogeosciences found that ocean alkalinity enhancement (OAE) could reduce atmospheric CO2 by 73-130 ppm by 2500 across 1.5C, 2C, and 3C warming stabilisation scenarios, while lowering global surface air temperature by about 0.14-0.17C per century, but said its effectiveness depends heavily on how removal efficiency is measured. The study, which used a fully coupled Earth system model from 1861-2500, found gross ocean carbon capture efficiency remained close to the theoretical maximum, while net ocean capture and atmospheric CO2-reduction efficiencies declined over time because of carbon cycle feedbacks from the ocean and land biosphere. The authors said OAE could mitigate ocean acidification at the surface and in the interior ocean, but most long-term pH benefits came from atmospheric CO2 drawdown rather than direct chemical effects from added alkalinity, concluding that rapid emissions reductions remain the most effective way to meet Paris Agreement goals and limit ocean acidification.

Bolivia’s executive branch aims to present an overarching climate finance bill to the country’s national assembly by July – establishing the basis for both voluntary and compliance markets, among other instruments, a top official told Carbon Pulse at the Peru Carbon Forum this week.

Marine carbon removal (mCDR) credits are entering the voluntary carbon market (VCM) before key questions on monitoring, ecological risk, and governance have been resolved, according to a new preprint study.

A new guide released on Thursday by a New York-based advisory firm set out criteria for buyers sourcing agricultural residues for biomass-based carbon removals (CDR), citing the need for safeguards around soil health, livelihoods, and credit integrity.

A Canada-headquartered carbon project financier expects its Vietnam household devices programme to secure an governmental Article 6 Letter of Authorisation (LOA) before year-end, potentially positioning the initiative among the first projects approved under the Southeast Asian country’s new international carbon trading framework.

Over 25% of carbon credits retired so far this year in the voluntary market (VCM) have come from Latin America and the Caribbean (LAC), where REDD+ units still dominate supply.

A UK-based data centre developer has launched what it described as the world’s first integrated carbon removal platform tailored to the data centre sector, seeking to bundle biochar production, credit generation, certification, monitoring, and financing into a single infrastructure-grade offering aimed at hyperscalers and institutional buyers.

Carbon buyers should assess projects based on quality, local fit, and delivery timelines rather than defaulting to dominant registries, a senior representative at a Colombian nature-based project developer told Carbon Pulse.

Quality control - Ratings agency Calyx Global announced the companies which are retiring the highest quality credits on average in research published on Thursday. The top three large buyers (>100,000 credits retired) by average rating of credits retired, all with a BBB or higher average in 2025, were Salesforce, Autodesk, and Ernst & Young. The top overall retirees (>500 credits) retired in 2025 by average rating of credits, all with a AA or higher average rating per Calyx Global data were Williams College, Gatwick Airport, Vetter Pharma, and StepStone Group. The retirement data is based on four registries: ACR, CAR, Gold, VCS.

A clean cooking project developer operating in multiple Latin American countries has already obtained one Article 6 Letter of Authorisation (LoA) and is hoping to gain more, while keeping up with market trends toward high integrity, representatives told Carbon Pulse in Peru.

A UK firm is launching a platform to sell up to 100,000 carbon-removal credits a year to cloud-computing providers. 

A South Korean trader and project developer has signed a contract with a Singapore-based marketplace for carbon credit procurement worth KRW 8.38 billion ($5.59 million).

Faster audits - Removals registry Puro.earth has launched an audit booking calendar to allow suppliers to generate revenue faster and bring greater transparency to buyers, it said in a release Thursday. The new tool enables suppliers to submit, manage, and track facility audit bookings in a single, structured platform, thereby replacing previous processes with a real-time view of booking status, audit timelines, and coordination with Puro certification teams. It's designed to shorten the gap between production of carbon removals (CDR) and the issuance of carbon credits, supporting faster time to revenue as the market scales.

Ethiopia's carbon market law - Ethiopia’s Council of Ministers has approved a draft carbon market proclamation to establish rules for carbon trading and attract green investment, local news outlet The Reporter said Tuesday. The draft legislation, which will now go to Parliament, seeks to operationalise the country’s carbon market strategy, define procedures for carbon trading, support climate finance access, and set safeguards for communities and ecosystems affected by carbon projects. It would also create mechanisms for sharing carbon trading revenues among the government, project developers, local communities, and other stakeholders, the outlet reported.

An emerging risk that many corporate net zero goals will not be met could push through greater pragmatism when outlining targets, as well as a more flexible approach across standard-setters, according to experts, even as the number of companies announcing science-aligned climate ambitions continues to grow.

A carbon removal (CDR) registry launched on Thursday a tool seeking to centralise audit scheduling and shorten the time to issuance.

A Toronto-headquartered carbon and precious metals royalty and streaming company has sharply narrowed its focus on voluntary offset markets after pulling back from a large-scale regenerative agriculture programme, while continuing efforts to monetise forestry credits and advance a planned merger.