The Earth Day event came amid a busy week of centenary tributes to Queen Elizabeth, including a Buckingham Palace reception, visits to an exhibit honoring her style and a British Museum viewing of a memorial model. Charles also delivered an emotional reflection on his mother’s 100th birthday.
Next, Charles and Queen Camilla head to the United States for events marking America’s 250th, including stops in Washington, New York and Virginia. The itinerary includes a meeting with President Trump and an address to a joint meeting of Congress, followed by a visit to Bermuda.