Nearly one year after the funeral of Queen Elizabeth II, Prince William traveled on a commercial flight to New York City Monday. After a series of engagements on the afternoon of his arrival, William will speak at the Earthshot Summit on Tuesday, making up a trip he had to cancel in the wake of his grandmother’s death.?

“As he remarked previously, the prince was incredibly appreciative for the love and support shown by the American people during that time,” said a spokesperson for Kensington Palace. “He is very much looking forward to being back in New York this week and hopefully meeting as many New Yorkers as possible.”?

At Tuesday’s summit, William will help announce the fifteen finalists for this year’s Earthshot Prizes, which award companies and projects focusing on climate solutions. The prizes, which the prince helped to found in 2020, honor five winners every year with a sum of 1 million British pounds ($1.2 million). This year’s winners will be announced at a ceremony in Singapore on November 7.

This marks William’s second trip to the US in the last year, after his visit to Boston for the 2022 Earthshot Awards ceremony last December, but his two-day tour will mark his first visit to New York City since December 2014, when he was joined by the Princess of Wales. This year’s trip coincides with the opening of the United Nations’ 78th General Assembly and Climate Week, a partnership between the UN, NYC government, and the non-governmental organization Climate Group to highlight the importance of speeding up progress on climate related issues.

In addition to his time at the summit, William will visit a few more sites relevant to his interests. Following his arrival on Monday, William will visit the Billion Oyster Project on Governors Island to meet with volunteers, students, and restaurateurs who are working to restore oyster reefs in New York Harbor. On Tuesday, he will meet with a group of first responders to talk about mental health.

“As ever, wherever the prince visits, he’s always keen to see, hear, and learn from other projects that are happening and taking place in and around the cities that he visits,” said the palace spokesperson. “He’s conscious that he’s doing this visit only a few days after September 11th, where many of the people that he will be meeting tomorrow were remembering those that were lost on 9/11.”

Later, he will meet with UN Secretary General António Guterres to discuss climate issues and the innovative solutions that Earthshot Prize winners and finalists have already cultivated around the world.