Any message, on any medium, stating or suggesting that a product, service or brand has a positive, zero or reduced impact on the environment: a word ("recyclable"), a figure, an image evoking nature, a self-declared label. If a customer can read an environmental benefit into it, it is a claim, and it must be substantiated. The official framework details the expectations for each medium.
Read the source article: Is this greenwashing? Test your sentence with 3 questions