Landmark event on 22 April to mark the record for highest number of countries signing an international treaty A record number of more than 130 countries will sign the landmark agreement to tackle climate change at a ceremony at UN headquarters on 22 April, the United Nations said on Thursday. [ ] The UN said signatures from over 130 countries, including more than 60 heads of state and government, would surpass the previous record of 119 signatures on the opening day for signing an international agreement. That record is held by the opening day signing of the Law of the...