Eugenie banned the use of plastics for her wedding to Jack Brooksbank.
The couple have also banned the used of single use plastics in their home.
"My whole house is anti-plastic now, and Jack and I want our wedding to be like that as well," Eugenie told British Vogue ahead of her October, 12 2018 nuptials.
The Duke and Duchess of Sussex are also vocal about environmental issues, but caused controversy with a recent post to their Sussex Royal Instagram account when they were accused of not always practicing what they preach.
After alerting followers to various environmental charities for their July focus, Meghan and Harry came under fire for not setting a good example when it came to their own CO2 emissions.
"Wait guys. You can’t fly private jets in your personal life and then post this kind of thing. Either live it or don’t. Truly. Walk the talk. Otherwise it’s hypocrisy," one follower said.
"Great initiative, but what about all the flying and driving done by the entire royal family? What about the outrageous size of the housing, the cost of the clothing etc. Perhaps it’s time to set an example. Be the change the our planet needs," said another.