Have a look at Travelyst, which is "led by Prince Harry, Duke of Sussex". It's aims state . . .
Together, we’re working to provide travellers with clear, consistent and credible sustainability information, empowering them to make more informed choices
and, from the Travelyst website . . .
Founded in 2019, by Prince Harry, The Duke of Sussex, and with his continued pro-bono support, we partner with leading travel and technology companies to unite the industry, share trusted sustainability data and empower travellers, businesses, and policymakers to make informed choices that benefit both the planet and the communities that live here
He doesn't practice what he preaches, and that's why he gets so much criticism.