Prince William plans to participate in the COP30 climate summit in Brazil during November, according to palace sources.
Prince William and King Charles appeared together on Thursday night at a event preceding the environmental conference, which is set to be held in the northern Brazilian city of Belém.
Father and son were present at the museum gathering, marking an rare public appearance together at a climate summit preparatory event arranged together with the United Kingdom administration.
The King has been a longstanding advocate of biodiversity preservation - and Prince William has inherited the mission, with his own climate innovation awards, which will be taking place in South America before the UN meeting.
Official representatives have characterized the Prince's participation at the upcoming climate summit as taking on an crucial position in "global climate discussions".
The King and Prince of Wales, making a joint entrance in the state Bentley, were introduced to participants featuring environmentalists, scientists, environmental activists, diplomats and politicians.
This participation featured addresses together with French leader Macron of the French Republic and other world leaders at the Ocean Finance Summit in the Principality of Monaco in recent months.
The climate conference will dovetail with the William's personal climate innovation prizes, which will wrap up in Rio de Janeiro the eve of he participates in the climate conference on the sixth of November.
Recently the prince described the Earthshot finalists as "modern-day pioneers".
The King has been a influential participant at earlier environmental conferences, giving the opening address in the United Arab Emirates for the 28th Conference of Parties, including the observation: "The Earth does not belong to us, we belong to the Earth".
"I have spent a substantial portion of my life trying to warn of the existential threats facing us over climate change, global temperature increases and biodiversity loss," the King told participants.
A tech-savvy writer and digital enthusiast with a passion for storytelling and innovation.