The Duke of Cambridge is to travel to New York next month to attend an Earthshot Prize innovation summit as a countdown to the awards being staged in the US.William will make the solo trip to the United States on September 21, where he will be joined by previous winners of his £50 million global environmental competition.The second Earthshot Prize awards ceremony will be held in Boston in December, after the inaugural event at London's Alexandra Palace last year.

The Duke of Cambridge is to travel to New York next month to attend an Earthshot Prize innovation summit as a countdown to the awards being staged in the US.William will make the solo trip to the United States on September 21, where he will be joined by previous winners of his £50 million global environmental competition.The second Earthshot Prize awards ceremony will be held in Boston in December, after the inaugural event at London's Alexandra Palace last year.