Prince William news: Prince Charles started speaking about climate change and plastic pollution five decades ago (Image: GETTY) Prince William news: Prince William and Sir David Attenborough ahead of the launch of the Earthshot Prize (Image: GETTY) A second social media user recalled the impact activists had on the planet five decades ago, when people started becoming more aware of finite resources and pollution. They said: "Much as I adore Wills, he needs to remember that those 'older relatives' are yesterday’s hippies that started the whole Save The Earth campaign 50 years ago." Other social media users pointed out many young people have introduced in their lifestyles wasteful habits.