Prince William reveals Earthshot Prize winners in global bid to tackle climate crisis

Five global thinkers were each awarded a grant worth 1m to develop their ideas and technologies

Celebrities have joined Prince William in London for the inaugural awards ceremony of his Earthshot Prize, an ambitious environmental program aimed at finding new ideas and technologies around the world to tackle the climate crisis and Earth's most pressing challenges.

Actors and activists strode down a green carpet at Alexandra Palace in north London. Emma Watson, Emma Thompson and David Oyelowo joined Kate, the Duchess of Cambridge, in handing out the awards, with a 1m going to each winner.