United States Special Presidential Envoy for Climate, John Kerry arrives for the 76th U.N. General Assembly at the United Nations headquarters in New York, U.S., September 20, 2021. John Minchillo/Pool via REUTERS

British Prime Minister Boris Johnson passes "Anyanwu", a sculpture by the Nigerian artist Ben Enwonwu that was gifted to the United Nations, as he arrives to speak with reporters after meeting with Antonio Guterres, Secretary General of the United Nations, during the 76th Session of the U.N. General Assembly at United Nations headquarters in New York, U.S., September 20, 2021. John Minchillo/Pool via REUTERS

(L to R) Taehyung/V, Suga, Jin, RM, Jungkook, Jimin and J-Hope of South Korean boy band BTS speak at the SDG Moment event as part of the UN General Assembly 76th session General Debate in UN General Assembly Hall at the United Nations Headquarters, in New York, U.S., September 20, 2021. John Angelillo/Pool via REUTERS

Jimin listens as J-Hope of the South Korean boy band BTS speaks at the SDG Moment event as part of the UN General Assembly 76th session General Debate in UN General Assembly Hall at the United Nations Headquarters, in New York, U.S., September 20, 2021. John Angelillo/Pool via REUTERS

RM of South Korean boy band BTS speaks at the SDG Moment event as part of the UN General Assembly 76th session General Debate in UN General Assembly Hall at the United Nations Headquarters, in New York, U.S., September 20, 2021. John Angelillo/Pool via REUTERS

Finland's President Sauli Niinisto arrives at the United Nations headquarters during the 76th Session of the U.N. General Assembly, in New York, U.S. September 20, 2021. John Minchillo/Pool via REUTERS

Brazil's President Jair Bolsonaro walks outside his hotel while attending the UN General Assembly 76th session General Debate at the United Nations, in New York City, U.S., September 20, 2021.

Members of the South Korean band BTS arrive at security check-in at the United Nations headquarters during the 76th Session of the U.N. General Assembly, in New York, U.S. September 20, 2021. John Minchillo/Pool via REUTERS

Tanzanian President Samia Suluhu Hassan arrives at the United Nations headquarters during the 76th Session of the U.N. General Assembly, in New York, U.S. September 20, 2021. John Minchillo/Pool via REUTERS

President of the Republic of Korea Moon Jae-in speaks at the SDG Moment event as part of the UN General Assembly 76th session General Debate in UN General Assembly Hall at the United Nations Headquarters, in New York, U.S., September 20, 2021. John Angelillo/Pool via REUTERS

U.S. Secretary of State Antony Blinken meets British Foreign Secretary Elizabeth Mary Truss on the sidelines of the UN General Assembly 76th session General Debate in UN General Assembly Hall at the United Nations Headquarters, in New York, U.S., September 20, 2021.

Antonio Guterres, Secretary General of the United Nations, speaks to reporters after a meeting with British Prime Minister Boris Johnson for climate change discussions during the 76th Session of the U.N. General Assembly in New York, at United Nations headquarters in New York, U.S., September 20, 2021. John Minchillo/Pool via REUTERS

Members of South Korean boy band BTS speak at the SDG Moment event as part of the UN General Assembly 76th session General Debate in UN General Assembly Hall at the United Nations Headquarters, in New York, U.S., September 20, 2021. John Angelillo/Pool via REUTERS

British Prime Minister Boris Johnson walks outside United Nations headquarters during the 76th Session of the U.N. General Assembly, in New York, U.S., September 20, 2021.

Nana Akufo-Addo, President of Ghana, arrives at United Nations headquarters during the 76th Session of the U.N. General Assembly, in New York, U.S., September 20, 2021. John Minchillo/Pool via REUTERS

Members of the South Korean band BTS descend an escalator at the United Nations headquarters in New York, U.S., September 20, 2021. John Minchillo/Pool via REUTERS

(L to R) V, Suga and Jin of South Korean boy band BTS speak at the SDG Moment event as part of the UN General Assembly 76th session General Debate in UN General Assembly Hall at the United Nations Headquarters, in New York, U.S., September 20, 2021. John Angelillo/Pool via REUTERS

U.S. Ambassador Linda Thomas-Greenfield speaks to the media after getting a COVID-19 test outside U.N. Headquarters during the 76th Session of the United Nations General Assembly in Manhattan, New York, U.S., September 20, 2021.