{"id":68304,"date":"2025-12-24T08:40:34","date_gmt":"2025-12-24T06:40:34","guid":{"rendered":"https:\/\/www.fondazioneguidovenosta.org\/en\/?p=68304"},"modified":"2026-01-16T22:22:41","modified_gmt":"2026-01-16T20:22:41","slug":"more-trees-fewer-deaths-a-study-shows-how-urban-canopies-help-fight-air-pollution","status":"publish","type":"post","link":"https:\/\/www.fondazioneguidovenosta.org\/en\/more-trees-fewer-deaths-a-study-shows-how-urban-canopies-help-fight-air-pollution\/","title":{"rendered":"More Trees, Fewer Deaths: A Study Shows How Urban Canopies Help Fight Air Pollution"},"content":{"rendered":"<p>[vc_row][vc_column][vc_column_text]<b>Excerpt from the ISDE (Doctors for the Environment) Newsletter<\/b><br \/>\n<a href=\"https:\/\/ambientenonsolo.com\/piu-alberi-meno-morti-lo-studio-che-dimostra-il-potere-delle-chiome-urbane-contro-linquinamento\/?utm_source=newsletterNotizie+ambientali+del+22+dicembre+2025&amp;utm_medium=emailMarco&amp;utm_term=2025-12-24&amp;utm_campaign=Notizie+ambientali+del+22+dicembre+2025\" target=\"_blank\" rel=\"noopener\"><b>More Trees, Fewer Deaths: The Study Showing the Power of Urban Canopies Against Pollution<\/b><\/a><br \/>\n<b>December 17, 2025<\/b><br \/>\n<b>Marco Talluri<\/b><\/p>\n<p>A new study published in\u00a0<a href=\"https:\/\/www.thelancet.com\/pdfs\/journals\/lanplh\/PIIS2542-5196(25)00112-3.pdf\" target=\"_blank\" rel=\"noopener\"><i>The Lancet Planetary Health<\/i><\/a>\u00a0(June 2025) provides compelling evidence of the role trees play in cities: increasing urban tree cover is not only an aesthetic or climate measure, but a genuine public-health intervention.<\/p>\n<p><b>An analysis of 744 European cities<\/b><\/p>\n<p>The team led by Pierre Sicard (ACRI-ST, France) analyzed 20 years of data (2000\u20132019) from 744 European urban areas with more than 50,000 inhabitants, assessing the relationship between tree canopy cover, pollutant concentrations (PM2.5, NO\u2082, and tropospheric ozone), and premature mortality attributable to air pollution.<\/p>\n<p>Average tree canopy cover in European cities is currently 18.5%, with strong regional differences: from 2.5% in Malta to 36% in Finland. Over the period observed, there was a slight increase (+0.76 percentage points), but this remains far from the 30% urban canopy target promoted by <a href=\"https:\/\/www.thelancet.com\/pdfs\/journals\/lanplh\/PIIS2542-5196(25)00112-3.pdf\" target=\"_blank\" rel=\"noopener\">the 3-30-300 rule<\/a>.<\/p>\n<p><b>Key findings<\/b><\/p>\n<p>The study reports striking results:<\/p>\n<ul>\n<li aria-level=\"1\">Every +5 percentage points of urban canopy reduces concentrations of PM2.5 by 2.8%, NO\u2082 by 1.4%, and ozone by 1.2%.<\/li>\n<li aria-level=\"1\">In health terms, this equates to around 4,700 premature deaths avoided each year in Europe.<\/li>\n<li aria-level=\"1\">If every city reached at least 30% tree cover, lives saved would rise to nearly 12,000 per year.<\/li>\n<li aria-level=\"1\">In 2019, urban trees already \u201csaved\u201d approximately 24,800 people from premature death due to air pollution.<\/li>\n<\/ul>\n<p>The most significant reductions in mortality are observed in Eastern and Southeastern Europe, where pollution levels remain higher, while the relative benefit is smaller in Northern European countries, which are already greener and less polluted.<\/p>\n<p><b>Trees as public-health infrastructure<\/b><\/p>\n<p>The authors emphasize that urban canopies are not mere \u201cbeautification,\u201d but health and climate infrastructure: they reduce exposure to pollutants, mitigate the urban heat-island effect, improve mental health, and support urban biodiversity.<\/p>\n<p>The challenge is twofold:<\/p>\n<ul>\n<li aria-level=\"1\">In densely built historic centers, reaching 30% will require creative solutions (vertical gardens, private greenery, tree-covered roofs and courtyards).<\/li>\n<li aria-level=\"1\">In Mediterranean and Southern European cities, climate change and water scarcity may make the urban tree stock more vulnerable, requiring resilient species and long-term management strategies.<\/li>\n<\/ul>\n<p><b>A lesson for urban policy<\/b><\/p>\n<p>The study urges policymakers to treat trees as strategic allies\u2014on par with transport and energy infrastructure. It also calls for citizen engagement, promoting planting not only in public spaces but also on private land, in a spirit of shared responsibility.<\/p>\n<p>As the research highlights: \u201cUrban greenery and emissions control must go hand in hand. Trees cannot replace anti-pollution policies, but they can amplify their benefits, creating cities that are more livable, healthier, and more climate-resilient.\u201d<\/p>\n<p><i>Below: a dead and hazardous plane tree in Cinisello Balsamo.<\/i>[\/vc_column_text][vc_separator][vc_single_image image=&#8221;68306&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221;][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The average tree cover in European cities is currently 18.5%. Every 5 percentage points of urban canopy reduces PM2.5 concentrations by 2.8%, NO\u2082 by 1.4% and ozone by 1.2%. In health terms, this means around 4,700 premature deaths avoided each year in Europe. By bringing every city to at least 30% tree cover, the number of lives saved would rise to almost 12,000 each year. In 2019, urban trees have already \u201csaved\u201d around 24,800 people from dying prematurely due to air pollution.<\/p>\n","protected":false},"author":1,"featured_media":68305,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[42],"tags":[43,50,44],"class_list":["post-68304","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-environmental-protection","tag-climate-change","tag-pollution","tag-reforestation"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.fondazioneguidovenosta.org\/en\/wp-json\/wp\/v2\/posts\/68304","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fondazioneguidovenosta.org\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fondazioneguidovenosta.org\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fondazioneguidovenosta.org\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fondazioneguidovenosta.org\/en\/wp-json\/wp\/v2\/comments?post=68304"}],"version-history":[{"count":1,"href":"https:\/\/www.fondazioneguidovenosta.org\/en\/wp-json\/wp\/v2\/posts\/68304\/revisions"}],"predecessor-version":[{"id":68307,"href":"https:\/\/www.fondazioneguidovenosta.org\/en\/wp-json\/wp\/v2\/posts\/68304\/revisions\/68307"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fondazioneguidovenosta.org\/en\/wp-json\/wp\/v2\/media\/68305"}],"wp:attachment":[{"href":"https:\/\/www.fondazioneguidovenosta.org\/en\/wp-json\/wp\/v2\/media?parent=68304"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fondazioneguidovenosta.org\/en\/wp-json\/wp\/v2\/categories?post=68304"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fondazioneguidovenosta.org\/en\/wp-json\/wp\/v2\/tags?post=68304"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}