epa10342215 Henry Dynov-Teixeira, 8, (L) wears a King's Guard costume with his mothers Melissa and Irene (obscured) as he presents Britain's Prince of Wales and Catherine, Princess of Wales (R) flowers after they completed touring at Greentown Labs for a view of green technologies developed in Somerville, Massachusetts, USA, 01 December 2022. The Prince and Princess of Wales will attend the Earthshot Prize Awards Ceremony in Boston on 02 December, according to the Royal Household. EPA-EFE/CJ GUNTHER / POOL