The green lie we all tell ourselves

Picture this: a woman stands in a supermarket aisle, a bottle of conventional washing-up liquid in one hand and an eco-certified alternative in the other. She has just spent the previous weekend signing an online petition about ocean plastic pollution. She follows several environmental campaigners on social media and proudly compost her kitchen scraps. And yet, without much deliberation, she places the cheaper, conventional bottle into her trolley and moves on. This scene plays out millions of times a day across the world and it sits at the heart of one of modern consumer culture's most baffling contradictions: the chasm between what people say they value and what they actually buy.

Researchers have a name for it. They call it the "value-action gap" and it has been puzzling marketers, policymakers and environmentalists for decades. The gap is not small. According to PwC's 2024 Voice of the Consumer Survey, which gathered responses from more than 20,000 people across 31 countries, nearly 85% of consumers say they are experiencing the disruptive effects of climate change firsthand and claim to be prioritising more sustainable consumption. And yet actual purchasing behaviour tells a very different story. A Stanford Graduate School of Business study published in 2025 found that despite 78% of respondents stating that a sustainable lifestyle was important to them, the most powerful drivers of real in-store purchases were package size, familiar ingredients and recognised product names rather than any environmental credentials whatsoever.

So what is going on? The honest answer is that human beings are far more complicated than surveys give them credit for and the forces shaping our behaviour at the checkout are rarely the same ones shaping our opinions on the sofa.

The first and most obvious culprit is price. Sustainable products carry a genuine premium. Research compiled by industry analysts has found that eco-friendly goods cost on average 28% more than their conventional counterparts, down from a 39% gap in 2018 but still significant enough to give most shoppers pause (Source: theroundup.org, Environmentally Conscious Consumer Statistics, 2024). When a household is already stretched by the rising cost of groceries, energy bills and rent, choosing an organic cotton t-shirt or a refillable cleaning product can feel less like a moral decision and more like an unaffordable luxury. According to GfK Consumer Life data, more than half of consumers believe sustainable products simply cost too much and that figure climbed even higher during periods of elevated inflation. This is not apathy. It is the economic reality of people trying to keep their heads above water.

But price alone does not fully explain the gap because even among consumers who can comfortably afford sustainable options, behaviour still lags behind stated intentions. This is where psychology takes over. Social scientists have long observed that people are prone to what is known as "moral licensing," a cognitive quirk where a virtuous act in one area grants an unconscious permission to behave less virtuously in another. A person who cycles to work may feel they have earned the right to buy fast fashion. Someone who dutifully recycles may not think twice about purchasing products wrapped in layers of unnecessary plastic. Good intentions in one corner of life can quietly cancel themselves out elsewhere.

There is also the powerful influence of habit. Consumer behaviour is deeply routine-driven. Most people walk through supermarkets on a kind of autopilot, reaching for the same products week after week without genuinely evaluating alternatives. Sustainable alternatives, by contrast, often require a break from that automaticity. They might be located in a different section of the shop, have unfamiliar packaging or require a moment of deliberation that a busy shopper simply is not willing to give. Even people who genuinely care about the environment can find that their caring does not survive contact with the practical friction of changing long-established routines.

Then there is the uncomfortable matter of trust. Nearly 70% of consumers now conduct at least some research before trusting a brand's sustainability claims according to the Simon-Kucher Global Sustainability Study 2024, and that scepticism is entirely rational. Greenwashing, the practice of making misleading or exaggerated environmental claims, has become widespread enough that many shoppers have simply stopped believing the labels. When a product is marketed with vague promises such as "natural," "green" or "planet-friendly" without any third-party certification or transparent evidence to back them up, it breeds exactly the sort of cynicism that stops people from paying more for it. Consumers are not irrational when they distrust these claims. They are responding to a history of being misled.

There is also a structural problem that rarely gets discussed openly: the choices available to most people are still largely unsustainable. The responsibility for change cannot rest entirely on individual shoppers when the supply chain, the retail environment and government policy still make the unsustainable option the default.  An average supermarket might stock hundreds of varieties of conventional shampoo and only a handful of plastic-free alternatives, often tucked away in an obscure corner. When the path of least resistance is always the conventional product, only the most committed and well-informed consumer will consistently seek out the alternative.

Social norms and identity also play an underappreciated role. People tend to buy products that signal something about who they are and who they want to be seen as within their social group. In some communities, buying sustainable products is a mark of status and progressiveness. In others, it can feel pretentious, preachy or simply out of place. A young professional in a metropolitan city may reach for recycled-fibre notebooks as a matter of course, while someone in a different economic or cultural context might find the very concept alienating. Sustainability has, fairly or not, become associated with a particular kind of affluent, educated consumer and that association actively excludes the majority of the population.

What makes this all the more striking is the sheer scale of the stated commitment. A 2023 survey of more than 2,000 adults found that 62% of people say they always or often seek out sustainable products to purchase, up from just 27% in 2021 according to data compiled by theroundup.org. That is a remarkable surge in stated intention. And yet sustainable products still hold only a fraction of actual market share. The distance between those two figures is where all the psychology, economics and social complexity of this issue lives.

Closing that distance will require more than better marketing or a new generation of eco labels. It will require making sustainable products genuinely affordable and widely accessible, rebuilding trust through rigorous transparency and accountability and designing retail environments where the sustainable choice is also the convenient one. Most importantly, it will require policymakers and businesses to stop placing the entire burden of saving the planet on the individual consumer's trolley and to accept that systemic change must come from the top as well. Until then, millions of people will continue to care deeply about the environment in theory and then reach for the cheaper option in practice, not out of hypocrisy but out of the very human tangle of cost, habit, doubt and circumstance.

Disclaimer: The views expressed here are solely those of the author and do not in any way represent the views of exchange4media.com.