Client Earth defines 'Greenwashing' is 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. In the case of our research, Big Oil used advertising on Google Search buying search terms like 'eco-friendly' to put forward messaging to try and appear more climate-friendly end environmentally sustainable than their business actually was.