A UK regulator banned a major bank's ads for promoting tree-planting while it continued financing fossil fuels at scale.
HSBC’s 2021 advertising campaign promoted tree-planting and net-zero financing commitments while omitting the bank’s continued large-scale fossil fuel financing. The UK Advertising Standards Authority banned both ads in 2022 in the first greenwashing ruling against a major bank.
The HSBC case raises a question that every organisation communicating about sustainability must confront: how much context is enough? HSBC’s defenders argued that the ads promoted genuine, positive initiatives and that requiring every piece of marketing to include a full accounting of the company’s carbon footprint would make environmental communication effectively impossible. No company is perfectly green, does every ad have to say so?
The ASA’s answer was clear: you do not have to disclose everything, but you cannot create a misleading overall impression. The difficulty lies in where that line falls. A bus-stop poster has limited space. A social media ad has seconds of attention. If regulators require companies to qualify every environmental claim with a disclaimer about their broader impact, the result may be that companies stop communicating about sustainability altogether, which helps no one.
The counter-argument is that the HSBC case was not subtle. The bank was one of the world’s largest fossil fuel financiers while advertising itself as a climate leader. The gap between the impression and the reality was not a matter of nuance, it was a matter of scale. The ruling did not say companies cannot advertise environmental progress. It said they cannot advertise environmental progress in a way that hides the environmental damage they are simultaneously financing. That is not an unreasonable standard, it is the minimum.
The HSBC ruling established that advertising standards bodies, not just financial regulators, have standing to act on greenwashing claims. This widened the accountability landscape considerably. A company’s communications team, not just its compliance department, now carries live regulatory risk when making environmental claims in public-facing materials.