Home2016 Treaties and Agreements ...Multilateral (16-1104) – Environment Agreement Under the United Nations Framework Convention on Climate Change hide Multilateral (16-1104) – Environment Agreement Under the United Nations Framework Convention on Climate Change TIAS Office of Treaty Affairs November 4, 2016 Environment and Conservation: Climate Change Agreement adopted at Paris December 12, 2015; signed by the United States April 22, 2016; entered into force November 4, 2016 The United States rejoined this agreement February 19, 2021. Download attachment [1 MB] Tags Environment Multilateral Treaties