The Intention-Action Gap
You spent three weeks on that sustainability campaign. The brief was clear: connect with customers who care about the planet. The creative was solid. The copy hit the right notes. The launch metrics looked encouraging — awareness up, sentiment positive, social engagement above benchmark.
Then someone in the quarterly review asked the question nobody had prepared for: did it change what customers actually do?
Silence.
This is not a failure of creativity. It is not a failure of strategy. It is a failure of measurement — and it happens on almost every sustainability campaign, at almost every company, at almost every level of marketing experience. Understanding why is one of the most useful things you can learn early in your career.
The gap that most brands never close
Here is a number that should reshape how you think about sustainability marketing. In a widely cited survey, 65% of consumers said they want to buy from brands that advocate sustainability. Only 26% actually do.
That is not a small rounding error. That is more than half of declared intent evaporating between intention and purchase. And the picture gets more complicated when you look at behaviour beyond purchase — recycling products, choosing eco options, changing usage habits. The gap between what people say they will do and what they actually do widens further still.
The temptation is to read this as a communications challenge. If customers aren't behaving sustainably, they must need better information. More compelling stories. A clearer message. So brands invest in sustainability campaigns, and then measure the response through awareness surveys, social sentiment, and content engagement. The numbers look good. The gap stays exactly where it was.
The problem is the measurement. Surveys, sentiment scores, and social metrics all capture what people say and feel. They do not capture what people do. When you measure the gap with attitudinal data, you are measuring the gap itself — not closing it.
What you should do: The next time you are briefed on a sustainability campaign, ask one question before anything else: what specific behaviour are we trying to change, and how will we know if it changed? Not "what do we want customers to feel?" Not "what is the awareness target?" What is the behaviour, and what is the evidence that it moved? If the answer is a survey or a sentiment score, that is the first thing to redesign.
Why this matters for your work specifically
Sustainability campaigns are particularly vulnerable to this trap because the subject generates strong feelings. People genuinely want to be seen as caring about the environment. So when you survey them, they tell you they care. When you show them sustainability content, they engage with it. When you ask them if they would change their behaviour, they say yes.
None of that tells you whether they actually changed.
There is a related dynamic worth knowing about, called the licensing effect. When a customer takes one visible sustainable action — buying your eco product, sharing your sustainability content, signing your pledge — they sometimes feel that action gives them permission to be less sustainable elsewhere. They offset. They feel virtuous. And they use less energy when it comes to the harder behaviour change you actually needed.
This means a campaign that drives high visible engagement can, in some cases, produce zero net behaviour change — or even negative outcomes — without anyone in the marketing team knowing. The metrics looked great. The dashboard was green. The behaviour went nowhere.
There is also a trap in how sustainability campaigns are often incentivised. Research shows that combining a financial reward ("save money by choosing our eco option") with a values-based message ("save the planet") can actually reduce sustainable preference compared to the values message alone. The financial incentive crowds out the intrinsic motivation — the thing that was actually driving the customer. The discount felt like a signal that the sustainable option needed selling, not choosing.
What you should do: When reviewing or presenting a sustainability campaign, build the habit of separating leading indicators from lagging indicators. Leading indicators — awareness, engagement, sentiment — are useful early signals but not evidence of success. Lagging indicators — units recycled, eco option chosen over standard, behaviour repeated over time — are evidence. Get comfortable asking: what is the lagging indicator for this initiative, and when will we see it?
The thing worth measuring instead
If attitudinal data is unreliable for sustainability, what should you be tracking?
Actual behaviour. Specifically: actions taken, choices made, things that changed in the physical world. Units returned to a take-back programme. Percentage of customers who opted into the eco packaging. Number of customers who completed the recycling step versus those who read the recycling content. These are not easy numbers to get. They require coordination with product, logistics, and sometimes retail partners. They take longer to show up. They are harder to put in a slide deck.
They are also the only numbers that tell you whether your sustainability marketing is working.
In the Marketing Canvas Method — a framework for diagnosing and improving marketing strategy — this distinction maps to a specific dimension. The customer engagement dimension (dimension 145, which tracks how well a company understands and responds to its customers' relationship with sustainability) scores zero for companies whose evidence is surveys and social metrics. A score above a neutral position requires demonstrated behaviour change, tracked over time, with real data. Not stated intent. Not awareness. Behaviour.
That standard sounds strict. It is strict. It is also the only standard that distinguishes genuine sustainability marketing from well-intentioned noise.
What you should do: Start building your own reference set of behaviour metrics for sustainability. When you see a campaign — from your company or elsewhere — look for the behavioural outcome, not the awareness metric. Over time, you develop an instinct for which sustainability initiatives are structured to produce real change and which are structured to produce good slides. That instinct is increasingly valuable as sustainability becomes a boardroom priority.
What this series covers
This article is the first in a six-part series on sustainability in marketing strategy. The following articles will walk through the diagnostic framework — how to score your company's sustainability marketing honestly, what the four strategic positions look like, and how to tell the difference between what a company claims and what it can evidence.
If you want to see where your company stands before reading further, the Quick Assessment gives you a starting position in under ten minutes.
This is part of the series: Sustainability in Your Marketing Strategy. Read the series introduction here.
For the strategy-level version of this article — with the full framework and scoring implications — read the companion piece for marketing and strategy leaders here.
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