ACEF representatives participated in the 19^th Session of the Conference of the Parties (COP19) to the UN Framework Convention on Climate Change (UNFCCC), and delivered a speech entitled “Cooperation of Civil Society Organizations to Address Climate Change” at the side event “Addressing Climate Change - NGOs in Action” held in China Pavilion at the UN Climate Change Conference. He introduced the impact of climate change, China’s policies and actions on climate change, and the actions of Chinese CSOs to address climate change, and put forward opinions and suggestions on Warsaw Climate Change Negotiation from the perspective of ECSOs. During the conference, they also participated in the “High-level Forum on Addressing Climate Change” and “High-level Forum on South-South Cooperation on Climate Change” and related exhibition activities.