Marketers and communications professionals have an important role to play in combatting climate change. We need more companies talking more often and more effectively about their environmental and social actions. Unfortunately too many marketing and comms teams lack the knowledge and expertise. They fall into one of two camps – they greenwash, or they greenhush. Both these camps slow progress towards a cleaner, greener future, but today I’m focusing on the seven greenwashing sins I see companies committing most often.

What Is greenwashing?

Greenwashing is giving customers the false impression that your product or service is more environmentally sound than it is. It can be communicated through words but also using imagery. Most greenwashing is unintentional and occurs because of a lack of awareness of how to communicate green claims (sustainability initiatives) effectively. 

Greenwash can be found everywhere: on products, packaging, company websites and in online, television, audio and print advertising.

Why is greenwashing problematic?

Greenwashing makes it hard (if not impossible) for people, companies and investors to make informed choices about the products and services they purchase. Between 80 and 89% of the world’s people are concerned about climate change and want more action. Greenwashing inhibits this. It muddies the waters, preventing us from making the most sustainable choices.

What are the penalties for greenwashing?

The law is tightening on companies that greenwash their claims. In the UK, the Digital Markets, Competition and Consumers Act 2024 has given the Competition and Markets Authority (CMA) the power to investigate, determine breaches and fine companies up to 10% of global turnover for greenwashing.

The risks don’t end there. Reputational damage for greenwashing can be just as damaging and can lead to customers, investors and talent losing confidence in your business and going elsewhere.

Guidance is available

Fortunately, the UK government is stepping up with advice and services to help companies check their green claims.

The CMA has produced comprehensive guidelines called the Green Claims Code. Meanwhile, the Advertising Standards Authority (ASA) has released rules on environmental and climate based advertising as set out in this guidance document.

So what are the 7 pitfalls to avoid?

Pitfall 1: Broad language

This is one of the most common mistakes I see. Companies label things “sustainable”, “green”, “eco-friendly”, “good”, “low-impact”, “earth-first”, and “better for the planet”. These terms are far too broad. They can mean different things to different people and are difficult to prove. Avoid these terms at all costs.

A high profile example of a company falling at this particular hurdle was Etihad Airlines. They claimed: “we’re taking a louder, bolder approach to sustainable aviation”. The ASA deemed this to be too vague (and probably completely implausible too).

Claims must be specific and clear. Start by stating specifically what your claim relates to, ie. your company / product / service / packaging / raw material / delivery. Then be clear about what the claim is, ie. home-compostable packaging / 20% less plastic / a 12% reduction in business travel emissions / pesticide-free production / all deliveries carried out by electric vehicles.

Pitfall 2: Jargon!

Too many companies use language and acronyms that cause confusion. Remember, most people don’t know the difference between Net Zero and Carbon Neutral. Terms like LCA (Life Cycle Assessment), GHG and CO2e can also trip up your audience and prevent them understanding what your claim is about.

Overcome this challenge by writing your claims in plain language and providing definitions for lesser known terminology. 

Pitfall 3: Lack of evidence

When you make a green claim you must provide proof that it is true. Be careful! Results of any tests that are carried out must be specific to the conditions you are claiming.

A baby-wipe company came unstuck by providing evidence relating to compostability that led customers to think they could compost the wipes in their garden compost bin, only to find them still intact 3 months later. The tests were carried out in optimal conditions, and didn’t reflect the realities of home composting. The company had to remove the claim.

The proof doesn’t have to be on the product, but should be accessible to the person reading / hearing the claim by way of a QR code or a link to further information.

Pitfall 4: Lack of transparency 

This is another common one. It often takes the form of ‘greenlighting’ which is when companies only talking about the positive things they’re doing without proper context (à la HSBC who ran ads promoting their planting 2 million trees to lock in 1.25 million tonnes of CO2, whilst conveniently forgetting their financing of polluting companies that contribute much more CO2 to the atmosphere).

Pitfall 5: Setting future goals without a pathway for achieving them

Yes, this is greenwashing! Sadly, it’s all too common for companies to set out their ambitions such as “we’ll be Net Zero by 2035” and then neglect to form an actionable plan for how they are going to achieve it.

If you are going to share an ambition, back it up with a SMART (Specific, Measurable, Achievable, Realistic, and Timely) plan to achieve it. With a plan in place organisations should then report progress towards their goals and learnings on an annual basis (find out more about impact reporting here).

Pitfall 6: Poor use of labels / certifications

There are around 500 labels and certifications in the market across 25+ industries. They all have different criteria and are assessed differently. Some are simply paid for badges that you can slap on your product or service with no third party audit / verification.

My advice would be to do your due diligence on the label itself, and also with your customers and other stakeholders to find out if they know what it means before spending the money / doing the work to get it.

Pitfall 7: Misleading use of nature imagery and colours

The CMA and ASA aren’t only looking at text. They also consider where imagery or use of colour might mislead customers into thinking something is more eco-friendly than it is. You should be judicious in your use of greens, beiges, browns and images of green meadows, blue skies and oceans and stripey bumblebees.

Wrapping up

Now you’ve read about the seven most common greenwashing sin and how to avoid them, it’s time to get down to the job of sharing your organisation’s actions to reduce its negative impact and positively tackle climate change. Remember, we need more stories of trying, achieving, attempting and even failing to move us forward.

If you’d like help communicating your organisation’s green claims, get in touch.

Hello and welcome. Let’s begin by defining what Carbon Literacy is. Being Carbon Literate means: “being aware of the impact of everyday activities on the climate, and knowing what steps can be taken to reduce emissions as an individual, a community group, or an organisation, and why it’s important that we all take these steps”.

Essentially, our planet has been warming worryingly fast since the time of the industrial revolution and we’re starting to experience the effects by way of more and more extreme weather events. 

Before you continue with this article, we should agree that something needs to be done about this and that everybody has a role to play.

Good. On the basis that we need to do something, a wise woman, Climate Scientist, Katharine Hayhoe, once said:

“The most important thing you can do to fight climate change is to talk about it. Why? Because no action ever began without some form of communication preceding it.“

I could just leave this article right there, but that would be a bit lazy so let’s dive into this.

Most people are concerned about climate change

You’re not the only one. According to various surveys, around 80% of people in the UK, Europe and the US are concerned about climate change. This means it is highly likely that the majority of any given company’s customers are worried. On the grounds that it is a marketers job to know about and respond to the concerns of their audience, it’s clear that sustainability should be a high priority.

But, marketers are getting it wrong

There are 2 problematic scenarios that I see time and again:

  1. Marketing teams put out sustainability content and unwittingly fall into the trap of greenwashing (sidenote: most greenwashing is unintentional).

Client Earth defines greenwashing as: “Where a company uses advertising and public messaging to appear more climate friendly and environmentally sustainable than it really is. It’s also a technique used by certain companies to distract consumers from the fact that their business model and activities actually do a lot of environmental harm and damage.”

  1. Marketers don’t know how to engage their audience on the subject so rather than say something they’re not sure about, they do the opposite – they greenhush.

Keystone Law defines greenhushing as “a concerted policy of not discussing activity with positive environmental impact, or not declaring environmentally-friendly credentials, through fear of the legal and social consequences of getting it wrong.”

Both are dangerous because they hold up progress in the fight against climate change. Both occur because marketing professionals lack the necessary knowledge and skills to be able to communicate sustainability effectively.

Why are greenwashing and greenhushing problematic?

Greenwashing is detrimental to efforts to combat climate change because it muddies the waters. It prevents people and companies from making informed choices about the products and services they are buying or investing in.

Greenhushing is equally dangerous for the same reasons. If companies are taking action to reduce their environmental impact, but aren’t talking about it, how can people make informed choices about what to purchase or where to invest?

The risk doesn’t stop there.

Corporate risks of greenwashing

That’s right, it’s not just the planet that could suffer. There are a few costly risks to businesses too:

  1. Reputational risk – getting your green communications wrong is a quickfire way to erode trust in your business. Environmental campaigners are quick to jump on greenwashing and use social media to create viral content to trash your brand.
  1. Financial risk – legislation to combat greenwashing is on the rise. From 6 April 2025 the Competition & Markets Authority in the UK has powers to fine companies for greenwashing. The financial burden can be considerable too, with fines up to 10% of global turnover (4% in the European Union).

The benefits of GOOD sustainability communications

As the Institute of Sustainability Studies says, Communication serves as a link between increasing awareness and motivating action”. By communicating the work you are doing to reduce your company’s environmental impact in an engaging way, you can educate, inspire, involve, build trust, promote innovation and drive collaboration and investment. In short, it can improve your company’s commercial prospects.

About Carbon Literacy training for marketing professionals

Annie Soulsby (Sustainable Life Coach) and I have created a Carbon Literacy course especially for marketing professionals. It applies to freelance, in-house company or agency-based marketers. Participants come away with an understanding of:

  • the science behind climate change and carbon emissions
  • how business operations and individual choices contribute to climate change
  • the Green Claims Code and Advertising Standards guidance
  • the jargon, what you can and can’t say, how to say it and how to back it up
  • strategies for reducing emissions individually and professionally
  • how to measure the carbon footprint of an advertising campaign
  • communications strategies to build engagement around climate and sustainability

The training takes place online over two half-day sessions. At the end of the course participants must submit a short form confirming they have understood the course content. They must also submit two pledges – one to pledge how they will reduce their personal carbon footprint the other to pledge how they will help reduce the carbon footprint of their organisation. If these are accepted by the Carbon Literacy Project, the participant is certified Carbon Literate.

With more and more companies incorporating sustainable practices, being Carbon Literate is a necessary tool in the belt of any marketing professional.

Click here for more information and to book on our next open course taking place in June 2025. Alternatively, contact me to find out how we can provide a course bespoke to your organisation by emailing hello@smallfootprintagency.com.

Small Footprint Agency