Prince William has paid tribute to his late grandmother the Queen as “one of life's optimists”, as he arrived with wife Kate in the United States ahead of his global environmental project the Earthshot Prize awards.
The Prince and Princess of Wales will spend three days in Boston before the ceremony on Friday, handing out five £1million prizes to incredible winners all aiming to solve the world’s biggest environmental problems.
As the royals touched down in Boston on a commercial British Airways flight this afternoon, William said: “Catherine and I are delighted to be back in the United States and are extremely grateful to Governor Baker and The First Lady of Massachusetts for their warm welcome into Boston.