Yvo de Boer, former Executive Secretary of the United Nations Framework Convention on Climate Change (UNFCCC), spoke to CGTN Europe and expressed deep concern over the U.S. decision to withdraw from the convention. He noted the irony that the U.S. played a central role in creating the UNFCCC, and warned that its exit carries serious global consequences. De Boer rejected the idea that the convention undermines American national interests, stressing that the UNFCCC’s strength lies in consensus, participation, and collective responsibility.