The members of the Working Group on Environment (WGE) from the six countries of the Greater Mekong Subregion (GMS), namely, the Kingdom of Cambodia, the People’s Republic of China, the Lao People’s Democratic Republic, the Republic of the Union of Myanmar, the Kingdom of Thailand, and the Socialist Republic of Viet Nam, met in Kunming, PRC on 1 April 2019 for the 24^th  Annual Meeting of the WGE (WGE 24) and attended the Consultation Workshop on Proposed GMS Climate Change and Environmental Sustainability Program (CCESP) from 1 to 2 April 2019.