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Image for Improving Air Quality Across California

Climate change worsens air quality, yet many climate strategies reduce other air pollutants as well. In California, PHI has assessed the health impact of proposed cap and trade regulations and been an active voice for health equity in the implementation of California’s Global Warming Solutions Act. 

PHI’s Regional Asthma Management and Prevention program helped pass California diesel emissions regulations that are projected to prevent 150,000 cases of asthma, 12,000 cases of acute bronchitis and 9,400 premature deaths over 15 years. 

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Top 24 for 2024

During 2024, PHI worked alongside our partners to advance public health research, policies, programs and interventions in communities around the globe. Read our 24 highlights from some of PHI’s most impactful work in 2024—a collection of our top stories, tools, resources and ideas that helped to improve health, advance equity and build community power.

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