On Earth Day, April 22, the U.S. Secretary of State John Kerry joined a record number of global leaders at the historic ceremony for the Paris Agreement at the United Nations (UN) headquarters in New York.
The ceremony, convened by UN Secretary-General Ban Ki-moon, was the first step in implementing the Paris Agreement adopted in Paris, France, on December 12, 2015, during the 21st session of the Conference of the Parties (COP21). Friday, April 22 was the 46th anniversary of Earth Day, which was first celebrated in 1970.