France's Union des Marques Upgrades Its Oneframe Ad-Carbon Tool
France's Union des Marques has updated Oneframe, the reference framework it created to measure the carbon footprint of advertising campaigns, broadening its scope and harmonising methods — a step toward a common industry standard for sustainable advertising.
The update
The Union des Marques, France's national advertisers' association, has released an updated version of Oneframe, its reference tool for calculating the carbon footprint of advertising campaigns. The refresh extends the framework's coverage and tightens the consistency of its methods. It is a quietly significant move: the industry cannot manage what it cannot measure, and a shared method is the precondition for real progress.
Oneframe has become a notable reference point in France precisely because it tackles the hardest part of green advertising — turning a vague commitment to sustainability into comparable numbers.
Why standardised measurement matters
For years, sustainability in advertising has been long on ambition and short on comparability. Every agency and advertiser measured differently, if at all, which made claims impossible to verify and easy to inflate. A common framework changes the conversation from marketing to accountability.
Standardisation also protects against greenwashing. When everyone uses the same method, a brand's carbon claims can be checked and compared rather than taken on faith — increasingly important as regulators across Europe scrutinise environmental messaging more closely.
The regulatory backdrop
This lands against a tightening European regulatory environment, where rules on green claims and environmental transparency are only getting stricter. Tools like Oneframe help the industry get ahead of regulation by building credible measurement before it is mandated, rather than scrambling to comply after.
For French brands in particular, which operate under some of Europe's more demanding environmental-communication rules, having a recognised domestic standard is a practical advantage as much as an ethical one.
What advertisers should do
If you make environmental claims about your marketing, you need a defensible way to measure them. Adopting a recognised framework is far safer than a bespoke method a regulator or journalist can pick apart. Measurement is becoming table stakes, not a differentiator.
Our advice is to treat carbon measurement as you would any other performance metric: build it into planning from the start, track it consistently, and be honest about the trade-offs. Credible numbers, not bold claims, are what will hold up under scrutiny.
Quick FAQ
What is Oneframe?
Oneframe is the Union des Marques' reference framework for measuring the carbon footprint of advertising campaigns in France. The association has released an updated version extending its scope and harmonising methods.
Why does standardised measurement matter?
A common method makes carbon claims comparable and verifiable rather than taken on faith, shifting sustainable advertising from marketing to accountability and guarding against greenwashing.
How does it relate to regulation?
It helps advertisers get ahead of tightening European rules on green claims by building credible measurement before it is mandated.
You can't manage what you can't measure, and for years ad sustainability was all ambition and no arithmetic. A shared framework like Oneframe quietly changes the game — it turns vague green claims into comparable numbers a regulator or journalist can actually check. In the greenwashing era, credible measurement isn't a differentiator anymore; it's the price of entry. — Daniel Nikolla, Founder of Merx Marketing
The takeaway: standardised carbon measurement is becoming table stakes for sustainable advertising — adopt a recognised framework and build it into planning, because credible numbers will hold up under regulatory scrutiny where bold claims won't.
Can your brand actually measure the environmental impact of its marketing — or are your sustainability claims running ahead of the evidence?
If you would like to know more about this topic, please contact us on danieln@merxmarketing.co.uk
Sources: Union des Marques, CB News.
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Written by Daniel Nikolla, Founder of Merx Marketing Ltd and Marketing Minute
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