{"id":44807,"date":"2025-08-28T13:23:59","date_gmt":"2025-08-28T13:23:59","guid":{"rendered":"https:\/\/site.itshrt.com\/worldnews\/climate-driven-wildfires-are-reversing-clean-air-progress-new-report-says\/"},"modified":"2025-08-28T13:23:59","modified_gmt":"2025-08-28T13:23:59","slug":"climate-driven-wildfires-are-reversing-clean-air-progress-new-report-says","status":"publish","type":"post","link":"https:\/\/site.itshrt.com\/worldnews\/climate-driven-wildfires-are-reversing-clean-air-progress-new-report-says\/","title":{"rendered":"Climate-driven wildfires are reversing clean air progress, new report says"},"content":{"rendered":"<p> <script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6606220950177433\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- ItShrt World News -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-6606220950177433\"\r\n     data-ad-slot=\"1882483372\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\r\n<br \/>\n<\/p>\n<div id=\"\">\n<p>Canada&#8217;s <a href=\"https:\/\/www.cbsnews.com\/news\/canada-wildfires-smoke-deaths-evacuations-manitoba-saskatchewan-alberta\/#:~:text=Canada%20faced%20its%20worst%20wildfire,in%20the%20world%20that%20year.\" rel=\"nofollow\" data-invalid-url-rewritten-http=\"\">worst wildfire season on record<\/a> tarnished the country&#8217;s <span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/what-is-the-air-quality-index\/\" target=\"_blank\" data-invalid-url-rewritten-http=\"\">air quality<\/a><\/span> and had similar effects on pollution in <span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/canadian-wildfires-force-evacuate\/\" target=\"_blank\" data-invalid-url-rewritten-http=\"\">parts of the United States<\/a><\/span>, according to a new report.<\/p>\n<p>University of Chicago researchers on Thursday released their annual <a href=\"https:\/\/epic.uchicago.edu\/wp-content\/uploads\/sites\/5\/2025\/08\/AR_2025_Global_English_Embargoed.pdf\" target=\"_blank\" rel=\"nofollow noopener\">Air Quality Life Index<\/a>, a situational update on air pollution and how it impacts life expectancy. The AQLI report said particulate pollution &#8220;remained the greatest external threat to human life expectancy,&#8221; comparing the impact to smoking.<\/p>\n<p>Researchers from the university&#8217;s Energy Policy Institute analyzed pollution data collected throughout 2023 and compared it with previous years.<\/p>\n<p>Michael Greenstone, a professor at the University of Chicago who created the AQLI, told CBS News his team focused on airborne particulate matter \u2014 small particles that are able to invade and wreak havoc on the body more easily than larger ones.\u00a0<\/p>\n<p>The data is taken from satellite readings that refresh each year and can take time to process, which is why the latest figures date back a couple of years, Greenstone said.<\/p>\n<p>While global pollution only rose slightly between 2022 and 2023, the report&#8217;s authors found that updated levels remained almost five times higher than <a href=\"https:\/\/apps.who.int\/iris\/bitstream\/handle\/10665\/345329\/9789240034228-eng.pdf\" target=\"_blank\" rel=\"nofollow noopener\">the limit recommended<\/a> by the World Health Organization to protect public safety. Local changes in air quality varied from one country to the next. The differences were particularly stark in the U.S. and Canada, where airborne particulate concentrations\u00a0<span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/most-polluted-cities-united-states-worldwide-iq-air-annual-report\/\" target=\"_blank\" data-invalid-url-rewritten-http=\"\">increased more than anywhere else<\/a><\/span>.<\/p>\n<figure class=\"embed embed--type-image is-image embed--float-none embed--size-original\">\n<p>      <span class=\"img embed__content\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets1.cbsnewsstatic.com\/hub\/i\/2023\/08\/23\/874f7882-f26d-4d30-949d-c97f6451bc60\/gettyimages-1614249872.jpg#\" alt=\"Canada City Of 150,000 Declares Emergency As Wildfires Near \" width=\"6233\" height=\"4156\" srcset=\"https:\/\/assets1.cbsnewsstatic.com\/hub\/i\/2023\/08\/23\/874f7882-f26d-4d30-949d-c97f6451bc60\/gettyimages-1614249872.jpg 1x\" loading=\"lazy\"\/><\/span><figcaption class=\"embed__caption-container\">\n<p>                  <span class=\"embed__caption\">Property and homes razed by a wildfire in Celista, British Columbia, Canada, on Saturday, Aug. 19, 2023.<\/span><\/p>\n<p>                  <span class=\"embed__credit\"><\/p>\n<p>                Cole Burston\/Bloomberg via Getty Images<\/p>\n<p>                          <\/span><br \/>\n              <\/figcaption><\/figure>\n<p>&#8220;Evidence of a link between climate change, wildfire smoke, and rising particulate pollution has been increasing over the past two decades,&#8221; the authors wrote in their report, citing a recent study that found human-caused climate change &#8220;increased the likelihood of autumn wind-driven extreme wildfire events, especially in the Western U.S.&#8221;\u00a0<\/p>\n<p>Extreme wildfires, particularly forest fires, have become larger, more common and more intense since the beginning of this century, <a href=\"https:\/\/science.nasa.gov\/earth\/explore\/wildfires-and-climate-change\/\" target=\"_blank\" rel=\"nofollow noopener\">according to NASA<\/a>.<\/p>\n<p>The Canadian wildfires caused particulate concentrations in Canada to soar to levels not seen since 1998, according to the AQLI. In the U.S., the wildfires drove up pollution to levels not seen since 2011 \u2014 a 20% uptick from the levels recorded in 2022. Wisconsin, Illinois, Ohio, Pennsylvania, Oklahoma and Mississippi were markedly affected, with pockets of those states replacing 20 counties in California as the most polluted nationwide.\u00a0<\/p>\n<p>Out of 3,137 American counties, the number of locations with pollution levels above the <a href=\"https:\/\/www.epa.gov\/criteria-air-pollutants\/naaqs-table\" target=\"_blank\" rel=\"nofollow noopener\">national U.S. standard<\/a> rose to 308 in 2023, up from just 12 in 2022, according to the report. Forty-eight of the counties were in Ohio, 41 were in Wisconsin, 31 were in Pennsylvania, 26 were in Indiana and 19 were in Illinois, with the remaining 143 spread across the rest of the country.\u00a0<\/p>\n<p>In Canada, the researchers said that 50% of residents in 2023 breathed air that contained particulates in amounts exceeding their <a href=\"https:\/\/www.canada.ca\/content\/dam\/eccc\/documents\/pdf\/cesindicators\/population-exposure-air-polluants\/2021\/population-exposure-outdoor-air-pollutants.pdf\" target=\"_blank\" rel=\"nofollow noopener\">national air quality standard<\/a>. That was a sharp turnaround in the country&#8217;s progress in pursuit of cleaner air, which had resulted in particulate levels falling below the national standard in previous years, said the report&#8217;s authors, noting that particulate levels in Canada&#8217;s most polluted regions were roughly equal to those of Bolivia and Honduras, two countries that face are known to face challenges addressing air quality and pollution.<\/p>\n<p>The Canadian provinces of Alberta, British Columbia and the Northwest Territories experienced the country&#8217;s worst pollution, according to the report. That reflected some of the locations of <span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/canada-wildfires-never-stopped-zombie-fires-smolder-winter\/\" target=\"_blank\" data-invalid-url-rewritten-http=\"\">destructive wildfires<\/a><\/span> that collectively <span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/map-canadian-wildfires-2023-where-are-the-fires-ontario-quebec\/\" target=\"_blank\" data-invalid-url-rewritten-http=\"\">burned more than 71,000 acres of land<\/a><\/span> from the East to West Coasts. <span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/how-did-wildfires-in-canada-start-spread-to-europe-midwest\/\" target=\"_blank\" data-invalid-url-rewritten-http=\"\">Smoke from those blazes<\/a><\/span> permeated the atmosphere over Canada and the U.S., creating hazy, and at times, orange, skies while health posing threats to people with certain conditions.\u00a0<\/p>\n<figure class=\"embed embed--type-image is-image embed--float-none embed--size-original\">\n<p>      <span class=\"img embed__content\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets1.cbsnewsstatic.com\/hub\/i\/2023\/05\/30\/97fa2965-6454-4be4-b92b-799365096e8d\/2023-05-29t140732z-2010832880-rc2x71aan3gs-rtrmadp-3-canada-wildfires.jpg#\" alt=\"Smoke from the Tantallon wildfire rises over houses in nearby Bedford, Nova Scotia, Canada, May 28, 2023. \" width=\"4032\" height=\"2688\" srcset=\"https:\/\/assets1.cbsnewsstatic.com\/hub\/i\/2023\/05\/30\/97fa2965-6454-4be4-b92b-799365096e8d\/2023-05-29t140732z-2010832880-rc2x71aan3gs-rtrmadp-3-canada-wildfires.jpg 1x\" loading=\"lazy\"\/><\/span><figcaption class=\"embed__caption-container\">\n<p>                  <span class=\"embed__caption\">Smoke from the Tantallon wildfire rises over houses in nearby Bedford, Nova Scotia, Canada, May 28, 2023.<\/span><\/p>\n<p>                  <span class=\"embed__credit\"><\/p>\n<p>                ERIC MARTYN \/ REUTERS<\/p>\n<p>                          <\/span><br \/>\n              <\/figcaption><\/figure>\n<p>Wildfires <span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/air-quality-maps-canadian-wildfire-smoke-midwest-northeast\/\" target=\"_blank\" data-invalid-url-rewritten-http=\"\">scorching Canada this summer<\/a><\/span> have again given rise to serious air quality concerns, for Canadians and Americans alike.<\/p>\n<p>&#8220;It&#8217;s correct to think of this air pollution from the wildfires as, kind of, the ghost of fossil fuels past,&#8221; Greenstone told CBS News.\u00a0<\/p>\n<p>He said that the U.S. has <span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/senate-votes-to-overturn-epa-rule-limits-7-hazardous-air-pollutants-clean-air-act\/\" target=\"_blank\" data-invalid-url-rewritten-http=\"\">over the last half-century<\/a><\/span> made &#8220;enormous progress&#8221; toward blocking particulates generated through the burning of fossil fuels, like oil and gas, from entering the air. The AQLI credited the implementation of the <a href=\"https:\/\/www.epa.gov\/laws-regulations\/summary-clean-air-act\" target=\"_blank\" rel=\"nofollow noopener\">Clean Air Act<\/a> for reducing particulate concentrations by over 60% since 1970, which it says added 1.4 years to the life expectancy of American residents.\u00a0<\/p>\n<p>But the devices used to block particulates do not prevent carbon dioxide from infiltrating the atmosphere, driving up temperatures and increasing both the incidence and the severity of wildfires, Greenstone added. When trees burn in a fire, more particulates are produced and released again.<\/p>\n<p>&#8220;The point we&#8217;re trying to make is that CO2 that&#8217;s released when we use fossil fuels, both historically and today, it stays up in the atmosphere for centuries, and it raises temperatures, and it will continue to for centuries,&#8221; Greenstone said. &#8220;What we&#8217;re seeing is an important consequence of that, which is, it&#8217;s going to increase the incidence of wildfires going forward. And those wildfires are causing us to breathe air that is going to cause us to lead shorter and sicker lives.&#8221;<\/p>\n<p>    <!-- data-recirc-source=\"chartbeat\" --><\/p>\n<aside class=\"component list recirculation component--type-recirculation component--type-recirculation-collection\">\n<div class=\"component__heading-wrapper\">\n<h3 class=\"component__title\">ClimateWatch: Climate Change News &amp; Features<br \/>\n                          <a href=\"https:\/\/www.cbsnews.com\/feature\/climate-change\/?intcid=CNI-00-10aaa3a\" class=\"component__view-more component__view-more--lg\" data-invalid-url-rewritten-http=\"\"><br \/>\n                More<br \/>\n                <svg viewbox=\"0 0 32 32\" class=\"icon__caret-right\" aria-hidden=\"true\">\n                  <use xlink:href=\"#icon-caret-down\"\/>\n                <\/svg><br \/>\n              <\/a><br \/>\n                      <\/h3>\n<\/p><\/div>\n<\/aside>\n<p>    <!-- tags --><\/p>\n<div class=\"content-author\">\n      <a href=\"https:\/\/www.cbsnews.com\/team\/emily-mae-czachor\/\" class=\"content-author__name\" data-invalid-url-rewritten-http=\"\">Emily Mae  Czachor<\/a><\/p>\n<div class=\"content-author__bio\">\n<div class=\"content-author__full-information\">\n<p class=\"content-author__text\">Emily Mae Czachor is a reporter and news editor at CBSNews.com. She typically covers breaking news, extreme weather and issues involving social justice. Emily Mae previously wrote for outlets like the Los Angeles Times, BuzzFeed and Newsweek.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6606220950177433\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- ItShrt World News -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-6606220950177433\"\r\n     data-ad-slot=\"1882483372\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\r\n<br \/>\n<br \/><a href=\"https:\/\/www.cbsnews.com\/news\/climate-driven-wildfires-reversing-canada-us-clean-air-progress\/\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Canada&#8217;s worst wildfire season on record tarnished the country&#8217;s air quality and had similar effects on pollution in parts of<\/p>\n","protected":false},"author":1,"featured_media":44808,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[340,3777,754,823,1134],"class_list":["post-44807","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-us","tag-air-pollution","tag-air-quality","tag-canada","tag-climate-change","tag-wildfire"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Climate-driven wildfires are reversing clean air progress, new report says - World News<\/title>\n<meta name=\"description\" content=\"Canada&amp;#039;s record 2023 wildfire season fueled sharp increases in the country&amp;#039;s air pollution and had similar effects in parts of the United States, according to a new report.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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