The princes opened up about how their dad used to make them go litter picking during their Summer holidays, and they think it's the best thing ever. Charles made William and Harry clear up after others during a childhood break in Norfolk, and the Duke of Sussex revealed that since then, he has seen it as totally normal to pick up litter.
They both spoke proudly of how Charles has been completely committed to environmental causes for decades, even when others thought he was talking nonsense, and they heaped praise on their dad for having the courage of his convictions and trying to change the way everyone treats the planet.
Image Source: Getty/ Anwar Hussein