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.

Drew Shindell is Nicholas Professor of Earth Science at Duke University following two decades at NASA. His research group studies the impacts on human health, agricultural yields, climate and the economy of policies to mitigate climate change or improve air quality. He is a member of the US National Academy of Sciences and serves on the Science Advisory Board of the US EPA.

Ms. Hayashi brings over fifteen years of extensive experience in addressing environmental and health issues across diverse sectors, spanning her roles in consulting firms, UNDP, JICA, and international NGOs. In 2020, she transitioned to a pivotal role as a Programme Manager at the Institute for Global Environmental Strategies (IGES) where Ms. Hayashi has demonstrated a strong commitment to the development and execution of integrated solid waste management strategies. Her approach emphasizes the incorporation of local capacity and context, with a particular focus on advancing circular economy principles and enhancing resource efficiency.

Ms. Bui My Binh is working at the International Cooperation Department of the Ministry of Agriculture and Environment (MAE). She is a focal point of MAE with the UN agencies for the cooperation on agriculture, forestry and food systems. She is also a member of MAE team in response to climate change in agriculture and rural development and a coordinator of the food systems partnership in Viet Nam.

Experienced in developing and implementing new technologies at domestic and overseas factories and research institutes, as well as in strategic planning, business profitability management, and new product and business development in business divisions. Currently head of strategic planning and execution, as well as new business development, in the Animal Nutrition Business Department, with a particular focus on reducing greenhouse gas emissions from cattle.

Stephanie Montero is an Air Quality and Health Expert at the Clean Air Institute, a nonprofit organization that partners with nations and cities to develop transformative solutions for reducing air pollution, tackling climate change, and protecting public health. She has vast experience leading air quality, climate, and health initiatives in collaboration with international organizations and government agencies across Latin America and the Caribbean. A Medical Doctor by training, she holds a Master’s in Global Health and Development and a Master’s in Local Development and Cooperation.

Charles Brooke leads Spark’s livestock enteric methane mitigation program, building off his science, policy, and practice expertise in the field. Charles also serves on the Global Methane Hub Enteric Fermentation Accelerator science oversight committee. His work focuses on accelerating the overall rate of action and innovation in the field. Prior to joining Spark, Charles served as the lead scientist for short-lived climate pollutants within the executive office of the California Department of Food and Agriculture where he created and managed the first state program to support enteric methane research.

Deo is an atmospheric scientist and committed to using his expertise, and experience to contribute towards developing scalable integrated solutions for environmental challenges in resource-strained settings such as Africa and the global South. He provides technical and scientific oversight to the AirQo team (www.airqo.africa), a research initiative championing new approaches for tackling air pollution in African cities, with a presence in 15 major cities across Africa. His research focuses on air quality network development, air pollution sources, transdisciplinary synergies and advancing the critical interface between science and policy. He is involved in organising the annual air quality forum, and has directly contributed to the development of contextual frameworks to advance the air quality and climate agenda, including the UNEA 6/10 resolution on advancing regional cooperation for air quality, the East Africa vehicular emission standards, and Uganda's first air quality regulations

Ana Maria oversees the Climate portfolio at CLASP, delivering carbon emissions reductions through implementation of ambitious energy efficiency policies in the highest emitting countries in Africa, Asia, Europe, Latin America and the Caribbean, and North America. She has over 15 years of experience in international energy efficiency policy design and implementation.

My real career started after seven years of post graduated studies and work on biodigesters and sustainability in three different continents, back to Latin America put my energies on consolidating the Latin American Network of Biodigesters, what brought me to understand the management of rural and urban biodegradable waste, and municipal solid waste issues later. Zero Waste Alliance Chile is my passion, where I found my drive to seek real paradigm changes. Since ever I have been focusing on projects with social impact, particularly environmental justice work. I love hiking, gardening, meditation, healthy cooking and fermenting food.

María Elena Huertas is co-executive director of POLEN Just Transitions in Colombia, a think tank that advocates for just transitions towards a more equitable and climate change-resilient society in Colombia. María Elena obtained her PhD in Engineering Sciences focused on air quality modeling and her research career has been oriented towards projects that support environmental policies based on scientific knowledge.

Cecilia Allen is the lead of the Global Zero Waste Cities Program GAIA, a network of grassroots groups as well as national and regional alliances representing more than 1000 organizations from 92 countries, who are working together to advance zero waste systems at all scales. Prior to this position, she served as GAIA’s regional coordinator for Latin America and The Caribbean. Cecilia also worked at the Environmental Protection Agency of Buenos Aires City and as a consultant, both working in the waste sector, and was part of several other environmental organizations in Argentina. Based in Córdoba, Cecilia is a Sociologist with complementary studies in Environmental Science at Universidad de Buenos Aires and Production and Analysis of Data for Public Policies at Universidad Nacional de Córdoba.

At CEEW, Abhishek is responsible for the 'Clean Air' team's efforts towards improving India’s air quality. He leads a team of 30+ researchers working on diverse issues in the air pollution landscape. Since 2007, Abhishek’s multi-disciplinary research experience and published work span 3 Ps: (air) pollution, (behaviour change in) people, and policy (analysis) related to air pollution and energy access. Abhishek completed his PhD in 'Resources, Environment and Sustainability' from the University of British Columbia. Abhishek was also a postdoctoral research scientist at Columbia University. Prior to his PhD, he was a Fellow at The Energy and Resources Institute (TERI). Abhishek’s research has appeared in scholarly journals such as Nature Energy (featured on the cover of September 2019 issue), Environmental Science and Technology, and Energy Research and Social Science.

Sergio Sánchez, an Environmental Engineering graduate from Universidad Autónoma Metropolitana in Mexico, serves as the Senior Policy Director of Global Clean Air at the Environmental Defense Fund (EDF), where he leads international strategies to reduce air pollution for health and climate benefits. His career includes roles such as Mexico's Vice Minister for Environmental Protection and Director General for Air Quality Management, during which he significantly contributed to improve Mexico City's air quality in the 1990s. Internationally, he has represented Mexico in major environmental negotiations and led initiatives like the Clean Air Institute, contributing to advancements in air quality management and sustainable transport across Latin America and globally.

Dr. Kenza Khomsi is an expert in climatology, air quality, and environmental health. Formerly Head of the Climate Change and Air Quality Departments at Morocco's General Directorate of Meteorology, she pioneered integrated climate and air quality services. Dr. Khomsi holds PhDs in Environmental Health and Climatology, an Engineering degree in Meteorology, and a Master’s in Theoretical and Applied Mechanics. Internationally, she serves on the WHO’s Global Air Pollution Technical Advisory Group and WMO expert teams, and co-leads the MENA GeoHealth Hub funded by the NIH. Her research and leadership focus on climate adaptation, air quality, and linking health with environmental policy, fostering global collaboration for sustainable solutions.

Engenheiro ambiental formado pela Faculdade de Tecnologia/UNICAMP e com pós em Agronegócio pela ESALQ/USP. Atua no Imaflora desde 2018, trabalhando com emissões de GEE pelo setor Agropecuário desde então. Grande parte da sua dedicação se dá ao Sistema de Estimativa de Emissões de Gases de Efeito Estufa (SEEG - https://seeg.eco.br/), uma iniciativa do Observatório do Clima (OC), na qual o Imaflora é responsável por estimar as emissões de GEE do setor agropecuário para o Brasil, estados e municípios, além das análises e publicações que fazemos com esse olhar sobre as emissões nacionais, formas de mitigação e metas a serem alcançadas. Também atua com políticas públicas associadas com a mitigação do setor, principalmente o Plano ABC+. Outras áreas com que trabalha é com Food Systems, Balanços de GEE no nível de fazenda, inventários de emissões de GEE, metas de redução de emissões de GEE baseadas na ciência (Science Based Targets Initiative).

Paula García Holley joined CATF in 2022 as Policy Manager, Latin America. In this role, she supports the Methane Pollution Prevention team in its efforts to reduce methane emissions across the region by advocating for ambitious and technically sound regulations and policies. Prior to joining CATF, Paula worked at ICF focusing on ozone depleting substances and hydrofluorocarbon analysis for the U.S. Environmental Protection Agency’s Stratospheric Protection Division and on environmental compliance support for the U.S. Agency for International Development. In addition, she worked at Mexico's Agency for Safety, Energy, and Environment (ASEA) in the development and implementation of methane regulations for the oil and gas sector. Paula holds a B.Sc. in Chemistry from the National Autonomous University of Mexico (UNAM) and a M.Sc. in Chemistry from Northwestern University.

Environmental engineer, PhD in Sanitation, Project Coordinator at the Municipal Urban Cleaning Company of Rio de Janeiro. Specialist in circular economy, treatment and recovery of organic waste (biogas and compost).

Ellen Michel is working for GIZ Proklima in a cluster promoting green cooling using natural refrigerants. GIZ Proklima is supporting partner countries in protecting the ozone layer and the climate. She is responsible for the Asian and Latin American and Carribean regions.