Helena Molin Valdés was the Head of the Climate and Clean Air Coalition (CCAC) Secretariat from 2013 to 2021. 

The CCAC is a voluntary partnership of governments, intergovernmental organizations, businesses, scientific institutions and civil society organizations committed to improving air quality and protecting the climate through actions to reduce short-lived climate pollutants, working with hundreds of civil society, cities and private sector actors in sectors to reduce black carbon, methane, tropospheric ozone and HFCs.

Helena is an experienced leader within the UN system. She was a senior executive with the UN Office for Disaster Risk Reduction (UNISDR), where she led work on resilient cities, disaster risk reduction, sustainable development, and climate change related topics. Before serving as UNISDR Deputy Director and Director a.i. she served as regional director for Latin America and the Caribbean and worked with the Pan American Health Organization on hospital mitigation and disaster preparedness. Before joining the UN Helena was a practicing architect, planner, and head of a Swedish NGO based in Central America that worked on community based projects and appropriate technology development, including improved bricks production and cook stoves with the University of Lund.