None of 20 supermarket giants reports methane in its supply chain

None of the 20 supermarket giants assessed in Changing Markets Foundation's latest Methane Action Tracker reports methane or has a methane reduction target for its supply chain. Seven of them, including Casino and Walmart, do not recognize methane as an issue at all, according to the NGO, as reported by The Grocer.

Retailers lag dairy and coffee brands

Even the best-performing retailers scored low. Tesco and Lidl ranked joint first among supermarkets, but they scored just 43.5% against the tracker's criteria.

Dairy and coffee brands did far better. Members of the Dairy Methane Action Alliance averaged 61.4%, up from 45.9% in the previous edition, while non-members averaged 22.3%. Bel Group led the ranking with 80%, overtaking Danone.

The gap suggests that joining a sector initiative and committing publicly to methane action goes together with measurable progress in disclosure and planning.

Where retail methane sits

For retailers, this methane sits upstream in Scope 3, the indirect emissions in a company's value chain. It comes from the dairy and meat production that their demand drives, rather than from their own stores or logistics.

Changing Markets says retailers have the leverage to shift those supply chains toward lower-methane options. It also notes that the EU's revised Corporate Sustainability Reporting Directive will put large food companies under closer scrutiny from 2028, which gives retailers a clear reason to start measuring supply-chain methane now.

Financing reductions at the farm

In Carbon3's view, measured methane reductions at supplier farms are the kind of outcome retailers could help finance through insetting, which funds emissions reductions inside a company's own value chain. Insetting is not offsetting, and the difference is explained at carbon3.net/insets-vs-offsets.

When those reductions are independently verified, credits are issued to the project developer, and Carbon3 records them once in its registry as inset credits. Each reduction then has a single owner and a single claim, which helps retailers, suppliers and auditors work from the same record.

Claim treatment depends on the applicable reporting framework.

Source: The Grocer (27 October 2026).