Dr. Joseph K. Lyou
President & CEO

Dr. Joseph K. Lyou serves as President & CEO of the Coalition for Clean Air.  In January 2020 he was appointed to serve on the California Transportation Commission by Assembly Speaker Anthony Rendon. Dr. Lyou also served as the governor’s appointee to the South Coast Air Quality Management District Governing Board from June 2007 to March 2019.

Prior to his work at CCA, he founded the California Environmental Rights Alliance, a public interest group dedicated to working on environmental justice issues. Dr. Lyou has spent 30 years helping community groups and concerned individuals with environmental protection issues, including air and water pollution, the clean-up of contaminated sites, and environmental justice. He previously held management positions with the California League of Conservation Voters Education Fund and Committee to Bridge the Gap. Dr. Lyou received his Ph.D. from UC Santa Cruz in 1990.

Bill Magavern
Policy Director

Bill joined CCA in 2012. Bill has more than 25 years advocating for environmental and public interest causes. He has authored numerous reports and articles on energy and environmental issues, and testifies frequently before the State Legislature, Air Resources Board, and other agencies. From 2000-2011, he represented Sierra Club California on a variety of environmental issues, and was honored in 2003 with the Mary Ferguson Award for outstanding service and in 2011 with the John Zierold Award for outstanding legislative advocacy. Bill was named a Clean Air Champion in 2007 by the Central Valley Air Quality Coalition.

Bill received his A.B in American Civilization, magna cum laude, Phi Beta Kappa, from Brown University and his J.D. magna cum laude, from the State University of New York at Buffalo Law School.

Brian Sheridan
Development Director

Brian is celebrating 20 years of leading nonprofit organizations’ fundraising and communications efforts. In addition to his core fundraising responsibility, Brian leads the Coalition for Clean Air’s California Clean Air Day efforts, which in two short years has grown to an estimated 650,000 participants across the State thanks to the collective effort of 316 organizational partners.

Brian came to CCA from the Council for Watershed Health, where he founded the Environmental Funders and Media Forum and spearheaded the growth of outreach, funding and events. Prior to this, he was the Director of Development for Heritage Square Museum. In this role, he oversaw the growth of the museum from a sleepy outpost to one of the Los Angeles’ landmark historic destinations. Brian received his Bachelor of Arts in Political Science from UC San Diego.

Chris Chavez
Deputy Policy Director

Chris joined CCA in 2017, and works on local and state advocacy, disadvantaged communities and electric vehicle deployment. Previously, Chris served as a Legislative Aide for State Senator Fran Pavley (ret.), staffing her on transportation, the state budget and the Senate floor. Additionally, Chris served as a Senate Fellow for then State Senator Alex Padilla and staffed legislation that improved rail service in Southern California. Prior to his time at the Capitol, Chris was a student advocate for California’s public higher education system. Chris has a BA in Political Science from California State University, Long Beach, and is an active member of the Long Beach community.

thunder dawn
Web Developer

thunder joined the CCA team in August 2018. They bring with them communications experience at nonprofit organizations throughout Los Angeles, working for causes including ending homelessness and animal welfare. They studied politics and film at Pomona College and the University of Oxford.

Dr. Jennifer Lentz
Program Manager

Dr. Jennifer Lentz joined CCA in 2020. Prior to coming to CCA, she worked at the Aquarium of the Pacific using GIS and community science to develop interactive ways to connect people of all ages to the ecology of the surrounding world, to create environmentally aware and engaged communities. She was also one of the lead authors of the 2015 report commissioned by Mayor Garcia advising him on how to make Long Beach the model of a climate resilient city.

Dr. Lentz is currently serves on LA County’s Sensitive Ecological Areas Technical Advisory Committee (SEATAC).

Dr. Lentz received her Ph.D. in 2012 from Louisiana State University.

Julia Randolph
Policy and Outreach Associate

Julia joined CCA in 2019. Prior to working with CCA, she did policy, outreach, and environmental work for the California Bicycle Coalition, CA Low Carbon Fuel and Energy Coalition, and with the Governor’s office on the Global Climate Action Summit. Julia has a B.S. in Integrated Science and Technology from James Madison University. She has a strong passion for protecting the environment and loves all things outdoors.

Karin Volpp-Gardela
Events & Development Manager

Karin works out of our Los Angeles office and joined the CCA team in February of 2016. Prior to working with CCA, she spent three years studying in Australia; before that she worked for 10 years as development manager for a local nonprofit providing arts instruction for disadvantaged children and youth. Karin believes that events are an important tool to bring stakeholders together, to create community and to raise the visibility of vitally important issues. She holds a diploma in art therapy and a BA in Business Management.

Ikenna Mbaruguru
Office Manager

Ikenna joined the CCA team in 2021 and has been working in our downtown Los Angeles office. Before working for CCA, he spent the last four years completing his undergraduate studies at the University of California, Riverside, earning a B.A. in Economics. Ikenna is passionate about finding new ways to utilize environmentally-friendly processes and hopes he can help CCA in our continued fight for clean air.