When Courts Extend Climate Liability to Customers: What the TotalEnergies Ruling Means for UK Boards

A French court has ruled that TotalEnergies must address climate risks arising from the downstream use of its products by customers — extending the duty of vigilance beyond the company's own operations, subsidiaries, and suppliers. TotalEnergies has announced it will appeal, arguing that the duty of vigilance law was not intended to cover clients' independent choices and that climate change as a global phenomenon falls outside its scope.

The case is a significant test of whether corporate climate obligations can be extended to Scope 3 downstream emissions — those generated by customers' independent use of a company's products — over which the company has no direct operational control.

Perigon Take

This ruling is a significant escalation in climate litigation, and its logic, if upheld on appeal, has implications well beyond French energy majors. The EU's CSDDD, now in implementation, already establishes similar duty of vigilance obligations across upstream value chains. A precedent extending corporate liability to downstream product use would fundamentally alter how companies in energy, materials, and consumer goods assess their legal exposure, introducing a material new category of climate-related financial risk.

For UK boards, the immediate read-across is to Scope 3 category 11 — use of sold products. Where those activities generate significant carbon emissions or have major detrimental environmental or societal impacts, they may constitute a material risk requiring active management and mitigation. Pressure will grow to build transition plans that genuinely incorporate product use, and to invest in meaningful action rather than relying on limited-influence arguments or light-touch stakeholder engagement.

The real boardroom question is not whether this ruling survives appeal, but whether your company's climate strategy is robust enough to withstand the same scrutiny — legally and reputationally — regardless of the outcome.

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