Previously with the Times Newspaper London, the U.N. Environment, and the U.N. Framework Convention on Climate Change, Nick was the Director of Communications and Spokesperson for the Paris Agreement of 2015. More recently, he has served as the Director of Communications for the Global Climate Action Summit that took place in San Francisco in September 2018.

Martina has over 25 years of experience in Environmental Policy and Programme Management, with a particular focus on energy, buildings, transport and sustainable cities, as well as partnership building. At the UN Environment Programme, she has served in different functions out of Paris and Nairobi, including in the Executive Office, heading UNEP’s work Transport, Bioenergy, Energy Policy, UNEP's work on on Cities and the Secretariat of the Global Alliance for Buildings and Construction, and now heading the Secretariat of the Climate and Clean Air Coalition.

Heather Adair-Rohani currently leads the work on air quality, energy, and health at the World Health Organization Headquarters. She has led the establishment of the Health and Energy Platform of Action, and the High-level Coalition on Health and Energy. She co-led the coordination and development of the WHO guidelines for indoor air quality: household fuel combustion and is currently overseeing the work to support countries in the implementation of these Guidelines through the Clean Household Energy Solutions Toolkit. She also actively participates and represents WHO at various global initiatives focused on health, air pollution, and energy like UN-Energy, Sustainable Energy for All, Inter-Agency Expert Group on Sustainable Development Goal Indicators, and the Global Strategy for Women, Children, and Adolescent Health.

Kimber Scavo worked on air quality management at the US EPA for 32 years. She came to the State Department in December 2022 to focus more on international air quality efforts. She is now Chairing the Executive Body of the UNECE’s Convention on Long-Range Transboundary Air Pollution.

Dr Dery is a lawyer, a seasoned public Administrator, and a certified chartered environmentalist is the Director of the environment division of the Ministry of Environment,sc, tech & innovation where he has policy oversight on climate change, biodiversity, coastal management, waste, and air quality. He is co-chair of the CCAC and has supervised the integration of SLCPs including Methane into Ghana's NDCs.

Bruno Brasil is the Director of Sustainable Production and Irrigation at the Ministry of Agriculture and Livestock in Brazil and is responsible for coordinating the Sectorial Plan for Adaptation to Climate Change and Low Carbon Emissions in Agriculture (ABC+ Plan). He is also a researcher, and former executive, at the Brazilian Agricultural Research Corporation (EMBRAPA). Dr. Brasil graduated in Biological Sciences and holds an MBA in Project Management, as well as a Master's and Ph.D. degrees in Microbiology. Since 2023, he has served as the Brazilian designated co-chair at the Climate and Clean Air Coalition (CCAC) Agriculture's Hub.