Study: Commercial Ads Undermine Degrowth Message, Calls for Stricter Regulations

A team of researchers from ICTA-UAB and the London School of Economics and Political Science has arrived at a counterintuitive finding: when companies market themselves as sustainable and encourage consumers to buy less, the commercial setting itself undermines the message. The study, published in PLOS Sustainability and Transformation, suggests that the very act of selling—even selling restraint—activates a consumer mindset that works against genuine reduction in consumption.

The research distinguishes between two competing visions for addressing environmental crisis. Degrowth proposes a deliberate, equitable reduction in production and consumption across wealthy nations, aimed at improving collective well-being while respecting planetary limits. Green growth, by contrast, seeks to maintain economic expansion while decoupling it from environmental harm through technology and efficiency gains. Until now, little empirical work had examined how these frameworks actually persuade people, or which messengers prove most effective.

Dallas O'Dell, Frédéric Basso, and Ganga Shreedhar designed two experiments with millennial participants in the United Kingdom to test this question. In the first, they presented marketing messages from a sustainable bath-products brand using two different approaches: one emphasizing green growth (buy sustainable products, keep consuming) and one emphasizing degrowth (consume less to live better). In the second experiment, a non-commercial organization presented the same frameworks, but framed them as matters of citizenship and environmental policy rather than consumer choice.

The results revealed a sharp divide. When the messages came wrapped in commercial packaging, the degrowth pitch failed to distinguish itself from green growth messaging. Participants showed no meaningful difference in purchase intentions, willingness to donate time, or broader consumption patterns between the two approaches. The researchers concluded that advertising itself activates consumer schemas—mental patterns built around buying—that override whatever the advertisement actually says. A company telling you to consume less is still a company trying to sell you something, and that context appears to be what sticks.

The non-commercial framing told a different story. When citizens encountered degrowth messaging in a policy context, they were significantly more likely to question the value of economic growth itself. Green growth messaging, meanwhile, generated stronger support for environmental policies overall. This suggests that degrowth may be more powerful at shifting underlying values and worldviews, while green growth remains more effective at securing immediate policy backing. Yet the researchers also identified a troubling secondary effect: framing environmental problems as systemic failures requiring reduction-based solutions sometimes left participants feeling less personal agency, potentially dampening their willingness to engage in active collective action.

The implications point toward a reorientation of how environmental messaging should work. The authors argue that degrowth communication should abandon commercial logic entirely and instead be led by non-commercial institutions—community organizations, civic groups, public bodies—that speak to people as citizens rather than consumers. These messages should connect to deeper values and shared visions of social change rather than individual purchasing decisions. Simultaneously, they call for stricter regulation of advertising itself, so that the burden of reducing consumption does not fall on individual choice alone.

But regulation of ads, the researchers emphasize, is only part of the answer. Structural changes are equally necessary: shorter working hours, limits on fossil fuel extraction, and other systemic measures that make consumption reduction socially and politically feasible rather than a matter of personal virtue. Without these changes, asking people to consume less remains an individual moral project rather than a collective transformation.

The study also flags an unresolved question for future research: whether emphasizing system-level failure might inadvertently discourage active political engagement—activism, information-seeking, advocacy for policy change. Understanding how to communicate degrowth without breeding helplessness, the authors suggest, will be crucial to translating research into actual social movement.