We had a conversation about sustainable business practices for small businesses today and I came to the conclusion that transparency is key. Be honest about about your business practices including the areas where your business falls short an explain why you are not yet meeting your sustainability goals. Your customers will understand and forgive you.
My recommendations included:
Create graphics/infographics that explain your sustainable practices and share them regularly on your website and socials. Don't be shy about sharing your green credentials.
Find green alternatives to your IT service providers like AWS, GCP etc... Check out The Positive Internet Company for green data centres as an alternatives and show this on your website.
Have a look at Environmental Policy Templates & Examples For Small Business from small99 it lists some of the best examples of sustainability policies for you to take inspiration and guidance.