1) Geneva, Switzerland
2) New Delhi, India
3) Washington D.C., United States
4) New York, United States
Explanation:
The 74th edition of United Nations (UN) Climate Action Summit 2019 was held in the General Assembly Hall of the UN Headquarters in New York, United States on September 23, 2019. It was hosted/convened by the UN Secretary-General António Guterres in order to meet the urgent need to address climate change; to achieve the goals of the Paris Agreement and to galvanize action that can limit climate change to 2°C and even to 1.5°C. Luis Alfonso de Alba was the Secretary-General’s Special Envoy for the 2019 Climate Action Summit.