Oil and gas well evaluation – Carbon credit ratings agency Sylvera on Wednesday launched an evaluation method for orphaned oil and gas carbon projects, targetting the methane emissions leaking from inadequately sealed wells. With public funding for plugging orphaned wells falling short, the voluntary carbon market has stepped in, Sylvera wrote, increasing the need for high-integrity methane reduction credits. Sylvera's framework will evaluate across four pillars: carbon accounting, additionality, permanence, and safeguarding and co-benefits.

Citi's carbon credit haul - US-based multinational investment bank Citigroup bought almost 50,800 carbon credits in 2025, a slight decrease from the previous year, it revealed in its annual sustainability report published this week. 2025 purchases were more concentrated in forestry credits, which accounted for four of the six Citi-supported projects during the year, while energy demand projects represented half of supported projects in the 2024 report, and forestry only one-fourth.

The European Commission’s plans for potentially integrating up to 250 million carbon removal (CDR) credits into the EU ETS are puzzling and fail to account for the reality of the market, a policy expert told Carbon Pulse on Wednesday.

Gold Standard is seeking feedback on a new methodology designed to support climate action across entire energy systems, rather than renewable generation alone, and updating its eligibility criteria for renewable energy projects. 

Biochar should be considered for supplying permanent CO2 removals to the EU's Emissions Trading System (ETS), according to the lead European Parliament negotiator on the market’s reform, who suggested introducing "safety margins" and "limitations" to address environmental integrity concerns.

Carbon revenues alone may not be enough to make many blue carbon projects in Southeast Asia financially viable or bridge the region’s massive $2.1 trillion blue economy financing gap, according to a new OECD report.

False advertising - The UK Advertising Standards Authority's recent rulings against Eurowings and Qatar Airways mark another step in the tightening scrutiny of carbon offsetting claims in aviation, according to law firm Burges Salmon. The regulator found both airlines misled consumers by suggesting passengers could offset or compensate for the emissions from specific flights without sufficient evidence. The decisions reinforce that advertisers must substantiate environmental claims with robust evidence and clearly explain how offsetting schemes work, rather than implying flights become environmentally benign. Burges Salmon said the rulings continue a broader crackdown on aviation green claims and signal that airlines promoting offsetting, sustainable aviation fuel or other climate initiatives should exercise greater caution to avoid breaching UK advertising rules.

Wasted millions - Nigeria is forfeiting hundreds of millions of dollars in potential carbon credit revenue because it lacks the domestic expertise needed to develop and manage carbon projects, according to climate finance specialist Olusola Omole, speaking to Vanguard. He argued the country's main constraint is not funding or policy, but a shortage of skilled professionals such as carbon accountants, MRV specialists, GIS analysts, biomass experts and project developers. Although Nigeria has established a regulatory framework through its Climate Change Act and National Council on Climate Change, it still relies heavily on foreign consultants, sending project development and verification fees overseas. Omole estimated Nigeria could generate 30 mln carbon credits annually by 2030, worth more than $500 mln.

A London-based spot marketplace for voluntary carbon credits on Wednesday said cumulative trading on its platform had surpassed 1 billion units exchanged.

CO2 released through the neutralisation of acid mine drainage could increase the carbon footprint of copper production by more than tenfold, according to a peer-reviewed study published Wednesday.

Carbon benefits for farmers – India’s government said it will support 11 pilot projects aimed at boosting farmer participation in the voluntary carbon market, according to News Arena India. The Ministry of Agriculture and Farmers’ Welfare told parliament on Tuesday that the projects are designed to generate income through carbon credits and promote sustainable farming practices. The pilots will focus on techniques to improve soil health, develop methodologies, and create a framework that supports farmer earnings. They will be implemented through seven institutes under four state agricultural universities and the Indian Council of Agricultural Research.