The Prince of Wales was present in New York City to attend the Earthshot Prize Innovation Summit last year.
The second Innovation Summit, held during New York Climate Week and the 78th Session of the UN General Assembly, brought together the 2022 Earthshot Prize Winners and Finalists with policymakers, global business leaders, philanthropists, and climate activists.
The Wales family have had a difficult year following the announcement that Princess Kate was diagnosed with cancer and undergoing preventative chemotherapy.
Princess Kate made an appearance on Sunday as she made her way to Crathie Kirk on the Balmoral estate. The outing marks only the third time this year that the Princess of Wales has made a public appearance.
Kensington Palace has been approached for comment.
