Criticising space race and space tourism, Prince William said that the world's greatest minds need to focus on trying to fix the Earth instead.
The Duke of Cambridge said that we need some of the world's greatest brains and minds fixed on trying to repair this planet, not trying to find the next place to go and live, reported The Guardian.
About the Cop26 summit, where world leaders will gather in Glasgow, William said that not enough action is taken. "I think for Cop to communicate very clearly and very honestly what the problems are and what the solutions are going to be, is critical. We can't have more clever speak, clever words but not enough action," he added.
He was talking ahead of the inaugural Earth shot prize awards and said that it was about trying to create action.
The prince expressed concern about climate anxiety in young people. "Young people now are growing up where their futures are basically threatened the whole time." He stated that it would be an "absolute disaster" if his eldest son was going to have to talk about the same issues in 30 years.
Newscast on BBC Sounds will air the interview the day after William Shatner (90) made history by becoming the oldest person in space. He is known for playing Captain James T Kirk in Star Trek and went to space in a rocket built by the Amazon founder Jeff Bezos's space travel company Blue Origin.
Newscast presenter Adam Flemming asked if the late Duke of Edinburgh had started the royal interest in environmental issues. William said that Prince Charles had a hard road. "My grandfather started off helping out WWF a long time ago with its nature work and biodiversity, and I think that my father's sort of progressed that on and talked about climate change a lot more."
Prince William added that he wanted the things he enjoyed - the outdoor life, nature, the environment - for his children and everyone else's children. "If we're not careful, we're robbing from our children's future. And I think that's not fair."