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Last Update: 10/26/2026 at 11:33 PM EST
Climate Change and Air Quality
Coverage from The Conversation, ACS Publications, and others
Climate change can make air pollution harder to control by increasing heat-driven ozone formation, changing winds and rainfall, encouraging stagnant conditions, and worsening wildfire smoke.
Research projects more frequent unhealthy summer air and air-quality alerts, particularly in densely populated areas of California and the eastern United States. The burden falls disproportionately on children, older adults, pregnant people, and those with heart or lung conditions, with potential effects including asthma, impaired lung development, and missed school. Emissions reductions can limit these risks, while filtration, ventilation, airtight buildings, masks, and clean indoor spaces can reduce exposure.
Looking Back
225 Day Timeline
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All Articles17 articles
Important
Climate change projections using climate and health modeling estimate more Americans will face unhealthy summer air by 2100 in the USA, with wildfire smoke complicating impacts in Canada.
5/25/2026 • Climate Science & Impacts • General
Tsinghua University modeling finds SSP3-7.0 climate warming in China during 2056-2060 increases ozone exposure, ozone-related premature deaths, and acute pollution days.
7/13/2026 • Climate Science & Impacts • General
US researchers connect summer heat and peaker power plant operation to worse AQI pollution and higher respiratory health risks for nearby communities.
7/8/2026 • Climate Science & Impacts • General
Bose Institute researchers report satellite evidence that PM pollution increased across India’s Indo-Gangetic Plain and reached the Himalayas, while NCAP under-addresses rural biomass burning.
5/25/2026 • Policy, Politics & Governance • General
University of Waterloo research projects more US summer air quality alert days by 2100 under unmitigated warming, driven by ozone and PM2.5 and concentrated in California and the eastern United States.
3/30/2026 • Climate Science & Impacts • General
In January 2026, ABC News reports from Delhi, India, on residents and experts confronting severe, persistent winter air pollution and its health impacts.
1/26/2026 • Climate Science & Impacts • General
New York City redirects congestion pricing revenue toward childhood asthma in the Bronx as diesel freight, peaker plants, and Canada wildfire smoke sustain high respiratory risk.
7/9/2026 • Climate Science & Impacts • General
During the June 2025 Lineage warehouse fire in Boyle Heights, Los Angeles, PM2.5 reached extremely hazardous levels while toxic-gas monitoring results were not fully released.
7/2/2026 • Climate Science & Impacts • General
American Lung Association State of the Air report using EPA monitoring from 2022 to 2024 finds persistent harmful ozone and particle pollution exposure for U.S. children driven by heat and wildfire smoke.
4/22/2026 • Climate Science & Impacts • General
Chris Malley and Anna Hansell report that vulnerability reduction plus lower particle pollution explains major mortality differences from air pollution in Europe, North America, and the UK since 1990.
4/2/2026 • Climate Science & Impacts • General
Interesting
State of the Air 2026 reports large shares of US children in counties with unhealthy ozone and particle pollution amid climate-linked drivers.
4/30/2026 • Climate Science & Impacts • General
University of Waterloo researchers project that climate change will expand U.S. smog-season unhealthy air alerts to about 100 million people by 2100.
3/30/2026 • Climate Science & Impacts • General
A University of Waterloo study estimates climate change will expand US smog-season air quality alerts to about 100 million people by 2100.
3/30/2026 • Climate Science & Impacts • General
A University of Waterloo study projects increased U.S. summer ozone and PM2.5 air-quality alert days by 2100 without climate action, with largest burdens in California and the eastern United States.
3/30/2026 • Climate Science & Impacts • General
University of Waterloo modeling projects more unhealthy ozone and PM2.5 summer air alert days in the United States by 2100 unless climate warming is reduced.
3/30/2026 • Climate Science & Impacts • General
University of Waterloo researchers project U.S. summer ozone and PM2.5 air quality could deteriorate by 2100 without climate action, increasing alert days for sensitive groups in California and the eastern U.S.
3/30/2026 • Climate Science & Impacts • General
A University of Waterloo-led study projects that by 2100 about 100 million Americans could live in areas where smog-season air quality routinely triggers unhealthy alerts.
3/30/2026 • Climate Science & Impacts • General