California Air Resources Board

CARB’s research goals of informing health-based air quality standards, reducing air pollution exposures, and protecting California from the potential impacts of climate change are met through a diverse portfolio of research projects. These projects, including their final reports, seminars, and other related materials can be found through our Research Contracts Catalog. Learn about recent findings from the Research Program through press releases, scientific publications, and Research Seminars.

Research-Specific Press Releases

Recent press releases related to the Research Program.

• California's methane satellite helps stop 10 large leaks (November 2025)
  • Related - CARB strengthens protections to curb methane emissions at landfills
• California launches first-in-the-nation satellite project to reduce methane leaks (March 2025)

Publications

Recent publications from in-house and contracted research projects.

• Classroom air quality in a randomized crossover trial with portable HEPA air cleaners, 2025 (in-house)
• Reducing inter-unit pollutant transfer through multifamily unit compartmentalization, 2024
• Real-world particulate, GHG, and gaseous toxic emissions from heavy-duty diesel and natural gas vehicles, 2024
• Source apportionment of Volatile Organic Compounds (VOCs) in the South Coast Air Basin (SoCAB) During RECAP-CA, 2024 (in-house)
• Examining air pollution exposure dynamics in disadvantaged communities through high-resolution mapping, 2024
• Air quality and public health effects of dairy digesters in California, 2024
• Flaming vs. smoldering emissions of pine needles under limited oxygen and fuel moisture conditions, 2024
• Simultaneous decreases in NO2 levels and disparities in California during the COVID-19 pandemic. Atmospheric, 2024 (in-house)
• Methane emissions from dairy operations in California’s San Joaquin Valley evaluated using airborne flux measurements, 2023
• Characterization of battery electric transit bus energy consumption by temporal and speed variation, 2023 (in-house)

Research Seminars

The Research Program holds Research Seminars to share findings of CARB-funded research with the public. Leading scientists present their research findings about air pollution and climate change. Most recent Seminar videos are available below. Browse and register for upcoming Research Seminars on CARB's Event Calendar. 

• CalHealthMap - Improved Assessment & Tracking of Health Impacts for California Communities Most Burdened by Pollution (Oct 2025)
• HIFIVE - Health Impacts of Filtration Improvements in Elementary Schools (Oct 2025)
• Two White Papers on Evaluating Race/Ethnicity in Health Impacts from Air Pollution & Climate Change (Jun 2025)
  • Health Impacts by Race/Ethnicity in Air Pollution Studies in California
  • Analysis of Race/Ethnicity in Social Determinants of Heath & Climate Change Vulnerability
• Policy Briefs: Effects of Transportation and Land Use Policies and Strategies on Vehicle Use, Greenhouse Gas Emissions (May 2025)
• Remote Sensing Measurements of Light-Duty Vehicle Emissions at Multiple California Locations (Apr 2025)
• Plume Capture Measurement of Vehicle Emissions at the Caldecott Tunnel for Heavy-Duty Emission Program Development and Verification (Apr 2025)
• Collection and Analysis of Agricultural Equipment Activity Data (Apr 2025)
• Low-Cost Sensors for Healthier Indoor Air Quality in Impacted Communities (Mar 2025)
• An Evaluation of Metropolitan Planning Organizations' Climate and Equity Goals (Mar 2025)

Search and watch past Research Seminars on CARB's YouTube Channel.