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King and Prince Join Forces for Landmark Environmental Engagement
9 Oct
Summary
- King Charles and Prince William attend joint event at Natural History Museum
- Preparing for COP30 climate summit in Brazil next month
- William to represent King at COP30 conference, give speech on his behalf

On October 10, 2025, King Charles and Prince William, the heir to the throne, came together for a rare joint environmental engagement at the Natural History Museum in London. The two royals, described as "two of the most dedicated champions of the natural world," arrived at the event in a state Bentley, walking side by side and greeting various dignitaries and officials.
The event was held to shine a spotlight on environmental challenges ahead of the COP30 global climate change summit scheduled to take place in Brazil next month. While William is set to travel to the South American country for his Earthshot Prize awards, he will also stay on to join world leaders at the UN conference in Belem in the Amazon.
In a significant development, Kensington Palace confirmed that the prince will be attending the COP30 summit on behalf of his father, the King, and will deliver a speech. This marks a major expansion of the heir to the throne's responsibilities on the world stage, as the 76-year-old King, who is still being treated for cancer, had previously led such events in person.