LONDON: Britain's Prince William on Thursday launched a "prestigious" environmental prize aimed at turning "pessimism into optimism" by rewarding innovative solutions to the planet's biggest problems.

The Earthshot Prize will present five £1 million ($1.3-million, 1.1-million-euro) awards each year for the next 10 years, to "incentivise change and help to repair our planet," said his office in London.

The jury will include a host of high-profile global figures, including Queen Rania of Jordan, Australian actress Cate Blanchett, British naturalist David Attenborough and the Colombian singer Shakira.

Kensington Palace described it as the "most prestigious global environment prize in history" and said it was inspired by US president John F. Kennedy's "Moonshot" project in the 1960s to put a man on the moon.

"We need to find solutions to be able to live our lives and enjoy our lives and not feel guilty and bad about some of the things we do," the prince, who is second in line to the throne, told BBC Radio 4 in an interview aired Thursday. "That ultimately has to change, because I also worry from a mental health point of view, the anxiety and the worry that many of these younger generations are going to have."