Air pollution: Exposure to outdoor and indoor air pollution is associated with a variety of health problems, including respiratory and cardiovascular diseases, as well as developmental and neurological problems. For example:

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• The World Health Organization estimates that outdoor air pollution causes 4.2 million premature deaths each year. (https://www.who.int/health-topics/air-pollution#tab=tab_1)

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• A study published in The Lancet found that exposure to particulate matter air pollution was associated with a higher risk of stroke, even at levels below current air quality guidelines. (https://www.thelancet.com/journals/lanpub/article/PIIS2468-2667(19)30121-7/fulltext)

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• Indoor air pollution from sources like household cleaners and cooking stoves has been linked to an increased risk of asthma, lung cancer, and other respiratory problems. (https://www.epa.gov/indoor-air-quality-iaq/health-effects-indoor-air-pollution)