UN Secretary General, Major Signatories Hold Press Conference On Paris Agreement

NEW YORK, NY - APRIL 22: Children from around the world stand in a procession with world leaders and country delegates in the General Assembly Hall at the United Nations Signing Ceremony for the Paris Agreement climate change accord on April 22, 2016 in New York City. At least 155 countries are expected to sign the agreement which has the goal of limiting warming to "well below" 2 degrees Celsius above preindustrial levels. The ceremony symbolically takes place on Earth Day. (Photo by Spencer Platt/Getty Images)