{"id":15986,"date":"2026-07-22T02:03:32","date_gmt":"2026-07-22T06:03:32","guid":{"rendered":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/a-week-of-smoky-skies-across-north-america\/"},"modified":"2026-07-22T02:03:32","modified_gmt":"2026-07-22T06:03:32","slug":"a-week-of-smoky-skies-across-north-america","status":"publish","type":"post","link":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/a-week-of-smoky-skies-across-north-america\/","title":{"rendered":"A Week of Smoky Skies Across North America"},"content":{"rendered":"<h2 style=\"text-align: center\">A Week of Smoky Skies Across North America<\/h2>\n<p><!-- no image --><\/p>\n<div class=\" hds-module hds-module-full alignfull wp-block-nasa-blocks-secondary-navigation\">\n<div class=\"hds-secondary-navigation-wrapper z-top width-100 padding-0\">\n<div class=\"hds-secondary-navigation width-full border-bottom-1px text-center hds-color-mode-dark hds-module hds-module-full alignfull 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class=\"hds-cover-wrapper width-full maxw-full flex-column\">\n<div class=\"hds-video-container width-full embed-container\"><video title=\"A Week of Smoky Skies Across North America\" class=\"video-js video-player vjs-fluid width-full\" data-setup='{\"controls\":true,\"preload\":\"auto\",\"plugins\":{\"mux\":{\"debug\":false,\"data\":{\"env_key\":\"91nns8oppqdfqc44lgo4b1gni\",\"player_name\":\"www.nasa.gov Player\",\"video_name\":\"A Week of Smoky Skies Across North America\"}}}}' preload=\"none\"><source src=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/a-week-of-smoky-skies-across-north-america\/nambrowncarbon_geos5_20260720.mp4\" type=\"video\/mp4\"><p class=\"vjs-no-js\">To view this video please enable JavaScript, and consider upgrading to a web browser that<br \/>\n\t\t\t\t\t<a href=\"https:\/\/videojs.com\/html5-video-support\/\" target=\"_blank\" rel=\"noopener\">supports HTML5 video<\/a><\/p><\/video><\/div>\n<\/div>\n<div class=\"hds-media-caption hds-caption padding-y-2\">\n<div class=\"hds-caption-text p-sm margin-0\">\n<div> <\/div>\n<\/div>\n<div class=\"hds-credits\">\n<div> <\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>Wildland fire activity in Canada ramped up in July 2026, a time of year when lightning ignitions typically increase, according to a <a href=\"https:\/\/www.nifc.gov\/nicc-files\/predictive\/outlooks\/NA_Outlook.pdf\" rel=\"noopener\">seasonal outlook<\/a> published by several North American fire agencies. The blazes sent smoke plumes pouring across the U.S. and Canada, affecting air quality in both countries. \u00a0<\/p>\n<p>This animation tracks brown carbon, the organic aerosols emitted by fires that give smoke plumes their characteristic yellow, orange, and brown tint. Brown carbon is a major component of a fire\u2019s <a href=\"https:\/\/www.epa.gov\/pm-pollution\/particulate-matter-pm-basics\" rel=\"noopener\">PM<sub>2.5<\/sub> emissions<\/a>, a type of air pollution that can aggravate cardiovascular and respiratory conditions. Here, the plume drifts across North American skies from July 14 through July 20, 2026.<\/p>\n<p>Data for the animation come from a version of the\u00a0<a href=\"https:\/\/gmao.gsfc.nasa.gov\/geos-systems\/\" rel=\"noopener\">GEOS<\/a>\u00a0(Goddard Earth Observing System) model, which assimilates data from satellites, aircraft, and ground-based observing systems. In addition to satellite observations of aerosols and fires, the model also incorporates meteorological data such as air temperature, moisture, and winds to project the plume\u2019s behavior.<\/p>\n<p>On July 14, at the start of the animation, numerous fires had already cropped up, including more than <a href=\"https:\/\/ciffc.net\/\" rel=\"noopener\">180 in Ontario<\/a> and several in northern Minnesota. Winds carried the smoke southeast, and by July 15, skies turned hazy and <a href=\"https:\/\/gispub.epa.gov\/airnow\/index.html?tab=3&#038;archivedates=07%2F15%2F2026&#038;showlegend=yes&#038;xmin=-11601950.584808262&#038;xmax=-7578305.415877653&#038;ymin=4623707.562903225&#038;ymax=6448412.302126467\" rel=\"noopener\">air quality declined<\/a> from southern Ontario in Canada to the Upper Midwest and Northeast in the U.S. July 16 and 17 saw air quality in many areas continue to plummet, including in Detroit, where it stayed in the hazardous range for several <a href=\"https:\/\/gispub.epa.gov\/airnow\/index.html?tab=3&#038;xmin=-18610920.330443922&#038;xmax=-2516339.6547214882&#038;ymin=-638828.9604731908&#038;ymax=7472056.984921276&#038;archivedates=07\/16\/2026\" rel=\"noopener\">consecutive days<\/a>. Toronto, Chicago, New York City, and Washington, D.C., saw air quality ranging from <a href=\"https:\/\/www.airnow.gov\/aqi\/aqi-basics\/\" rel=\"noopener\">unhealthy to hazardous<\/a>.<\/p>\n<p>On July 19 and 20, smoke continued to affect air quality downwind, including in the Great Lakes region, according to the <a href=\"https:\/\/www.wpc.ncep.noaa.gov\/archives\/discussions\/pmdspd\/KWBCPMDSPD_20260719_184703\" rel=\"noopener\">National Weather Service<\/a>. Storms began clearing it away in parts of the East, where air quality improved to good or moderate. Meanwhile, <a href=\"https:\/\/inciweb.wildfire.gov\/\" rel=\"noopener\">fires<\/a> in the Pacific Northwest began degrading air quality there.\u00a0<\/p>\n<p>The brown carbon shown in this animation represents organic carbon that comes specifically from wildfire smoke. Wildfires also emit black carbon, or soot, which contributes to their PM<sub>2.5<\/sub> output. Black carbon has long served as a<a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/widespread-smoke-from-canadian-fires-154641\/\" rel=\"noopener\"> tracer for smoke plumes<\/a>, but human sources\u2014such as vehicle exhaust and industrial combustion\u2014produce it too, blending in with the black carbon from fires. The GEOS model has been able to make that distinction for brown carbon since February 2026, when <a href=\"https:\/\/gmao.gsfc.nasa.gov\/science-snapshots\/splitting-anthropogenic-and-biomass-burning-sources-of-organic-carbon-in-gocart-2g\/\" rel=\"noopener\">an update<\/a> enabled it to split organic carbon into its anthropogenic and biomass-burning components.<\/p>\n<div aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<p><em>NASA Earth Observatory animation by Lauren Dauphin,\u00a0using\u00a0<a href=\"https:\/\/gmao.gsfc.nasa.gov\/gmao-products\/\" target=\"_blank\" rel=\"noreferrer noopener\">GEOS-FP<\/a>\u00a0data from the\u00a0<a href=\"https:\/\/gmao.gsfc.nasa.gov\/\" target=\"_blank\" rel=\"noreferrer noopener\">Global Modeling and Assimilation Office<\/a>\u00a0at NASA GSFC.\u00a0Story by Kathryn Hansen.<\/em><\/p>\n<h2 class=\"wp-block-heading\">References &#038; Resources<\/h2>\n<ul class=\"wp-block-list\">\n<li>The Conversation (2026, July 16) <a href=\"https:\/\/theconversation.com\/yes-breathing-wildfire-smoke-can-harm-your-health-heres-what-you-can-do-to-protect-yourself-287668\" rel=\"noopener\">Yes, breathing wildfire smoke can harm your health \u2013 here\u2019s what you can do to protect\u00a0yourself<\/a>. Accessed July 21, 2026.<\/li>\n<li>NASA\u2019s Global Modeling and Assimilation Office (2026, February 19) <a href=\"https:\/\/gmao.gsfc.nasa.gov\/science-snapshots\/splitting-anthropogenic-and-biomass-burning-sources-of-organic-carbon-in-gocart-2g\/\" rel=\"noopener\">Splitting Anthropogenic and Biomass Burning Sources of Organic Carbon in GOCART-2G<\/a>. Accessed July 21, 2026.<\/li>\n<li>NASA\u2019s Scientific Visualization Studio (2026, July 20) <a href=\"https:\/\/svs.gsfc.nasa.gov\/5665\" rel=\"noopener\">Long-range Transport of 2026 Canadian Wildfire Smoke into the United States (July 14-20, 2026)<\/a>. Accessed July 21, 2026.<\/li>\n<li>National Interagency Fire Center, Natural Resources Canada, and Servicio Meteorol\u00f3gico Nacional (2026, July 14)\u00a0<a href=\"https:\/\/www.nifc.gov\/nicc-files\/predictive\/outlooks\/NA_Outlook.pdf\" rel=\"noopener\">North American Seasonal Fire Assessment and Outlook<\/a>. Accessed July 21, 2026.<\/li>\n<li><em>The New York Times<\/em> (2026, July 19) <a href=\"https:\/\/www.nytimes.com\/2026\/07\/19\/weather\/wildfire-smoke-latest-updates.html\" rel=\"noopener\">When Will the Wildfire Smoke Clear?<\/a> Accessed July 21, 2026.<\/li>\n<li>U.S. Environmental Protection Agency (2026, July 14-20) <a href=\"https:\/\/gispub.epa.gov\/airnow\/index.html\" rel=\"noopener\">AirNow: Interactive Map of Air Quality<\/a>. Accessed July 21, 2026.<\/li>\n<\/ul>\n<div class=\"hds-content-lists-inner hds-module hds-module-full alignfull wp-block-nasa-blocks-content-lists\">\n<div class=\"hds-content-lists margin-y-3 padding-x-0 bg-spacesuit-white width-full maxw-full\" data-starting-query=\"{\" block_id data-current-query=\"{\">\n<div class=\"grid-container grid-container-widescreen padding-x-3\">\n<div class=\"grid-row flex-align-start margin-bottom-3\">\n<div class=\"desktop:grid-col-8 margin-bottom-2 desktop:margin-bottom-0\">\n<h2 class=\"section-heading-sm line-height-sm\">You may also be interested in:<\/h2>\n<p class=\"margin-top-0 margin-bottom-2 maxh-tablet\">Stay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n<div class=\"grid-row grid-container grid-container-block padding-0 margin-0 flex-justify-center\">\n<div class=\" grid-col-12\">\n<div class=\"grid-row grid-container grid-container-block padding-0\">\n<div class=\"grid-col-12 filter-tags-container\"><\/div>\n<\/div>\n<div class=\"smd-orbit-loader\" role=\"status\" aria-hidden=\"true\">\n<div class=\"orbit-plane\"><span class=\"orbit-dot\"><\/span><\/div>\n<\/div>\n<div class=\"hds-content-items hds-content-items-grid margin-top-2\" aria-live=\"polite\" data-rest-url=\"https:\/\/science.nasa.gov\/wp-json\/smd\/v1\/content-list\">\n<div class=\"hds-content-item content-list-item-post\">\n                    <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/ontario-wildfire-smoke-moves-east\/\" class=\"hds-content-item-thumbnail\" rel=\"noopener\"><\/p>\n<figure class=\"hds-media-background  content-list-thumbnail\"><img decoding=\"async\" loading=\"lazy\" width=\"300px\" height=\"300px\" data-no-id=\"true\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/ontario-wildfire-smoke-drifts-east\/ontariofires_virs3_20260714_th.jpg?fit=clip&#038;crop=faces%2Cfocalpoint&#038;w=300 300w\" alt=\"\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/ontario-wildfire-smoke-drifts-east\/ontariofires_virs3_20260714_th.jpg?fit=clip&#038;crop=faces%2Cfocalpoint&#038;w=300\"><\/figure>\n<\/p>\n<p><\/a><\/p>\n<div class=\"hds-content-item-inner\">\n            <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/ontario-wildfire-smoke-moves-east\/\" class=\"hds-content-item-heading\" rel=\"noopener\"><\/p>\n<div class=\"hds-a11y-heading-22\">Ontario Wildfire Smoke Moves East<\/div>\n<\/p>\n<p><\/a><\/p>\n<div class=\"hds-content-item-readtime label margin-bottom-1\">\n                    3 min read                <\/div>\n<p class=\"margin-top-0 margin-bottom-1\">Canadian wildfires sent plumes of smoke streaming over Ontario, Quebec, and parts of the U.S. Midwest and Northeast.<\/p>\n<div class=\"display-flex flex-align-center label color-carbon-60 margin-bottom-auto\"><svg version=\"1.1\" class=\"square-2 margin-right-1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" width=\"16px\" height=\"16px\" viewbox=\"0 0 16 16\" xml:space=\"preserve\"><g><g><path d=\"M8,0C3.5,0-0.1,3.7,0,8.2C0.1,12.5,3.6,16,8,16c4.4,0,8-3.6,8-8C16,3.5,12.4,0,8,0z M8,15.2 C4,15.2,0.8,12,0.8,8C0.8,4,4,0.8,8,0.8c3.9,0,7.2,3.2,7.2,7.1C15.2,11.9,12,15.2,8,15.2z\"><\/path><path d=\"M5.6,12c0.8-0.8,1.6-1.6,2.4-2.4c0.8,0.8,1.6,1.6,2.4,2.4c0-2.7,0-5.3,0-8C8.8,4,7.2,4,5.6,4 C5.6,6.7,5.6,9.3,5.6,12z\"><\/path><\/g><\/g><\/svg><span>Article<\/span><\/div>\n<\/div>\n<\/div>\n<div class=\"hds-content-item content-list-item-post\">\n                    <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/smoke-shrouds-northern-thailand\/\" class=\"hds-content-item-thumbnail\" rel=\"noopener\"><\/p>\n<figure class=\"hds-media-background  content-list-thumbnail\"><img decoding=\"async\" loading=\"lazy\" width=\"300px\" height=\"300px\" data-no-id=\"true\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/smoke-shrouds-northern-thailand\/seasiafires_tmo_20260422_th.jpg?fit=clip&#038;crop=faces%2Cfocalpoint&#038;w=300 300w\" alt=\"\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/smoke-shrouds-northern-thailand\/seasiafires_tmo_20260422_th.jpg?fit=clip&#038;crop=faces%2Cfocalpoint&#038;w=300\"><\/figure>\n<\/p>\n<p><\/a><\/p>\n<div class=\"hds-content-item-inner\">\n            <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/smoke-shrouds-northern-thailand\/\" class=\"hds-content-item-heading\" rel=\"noopener\"><\/p>\n<div class=\"hds-a11y-heading-22\">Smoke Shrouds Northern Thailand<\/div>\n<\/p>\n<p><\/a><\/p>\n<div class=\"hds-content-item-readtime label margin-bottom-1\">\n                    3 min read                <\/div>\n<p class=\"margin-top-0 margin-bottom-1\">Seasonal fires have darkened skies over Southeast Asia.<\/p>\n<div class=\"display-flex flex-align-center label color-carbon-60 margin-bottom-auto\"><svg version=\"1.1\" class=\"square-2 margin-right-1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" width=\"16px\" height=\"16px\" viewbox=\"0 0 16 16\" xml:space=\"preserve\"><g><g><path d=\"M8,0C3.5,0-0.1,3.7,0,8.2C0.1,12.5,3.6,16,8,16c4.4,0,8-3.6,8-8C16,3.5,12.4,0,8,0z M8,15.2 C4,15.2,0.8,12,0.8,8C0.8,4,4,0.8,8,0.8c3.9,0,7.2,3.2,7.2,7.1C15.2,11.9,12,15.2,8,15.2z\"><\/path><path d=\"M5.6,12c0.8-0.8,1.6-1.6,2.4-2.4c0.8,0.8,1.6,1.6,2.4,2.4c0-2.7,0-5.3,0-8C8.8,4,7.2,4,5.6,4 C5.6,6.7,5.6,9.3,5.6,12z\"><\/path><\/g><\/g><\/svg><span>Article<\/span><\/div>\n<\/div>\n<\/div>\n<div class=\"hds-content-item content-list-item-post\">\n                    <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/fighting-fire-with-fire\/\" class=\"hds-content-item-thumbnail\" rel=\"noopener\"><\/p>\n<figure class=\"hds-media-background  content-list-thumbnail\"><img decoding=\"async\" loading=\"lazy\" width=\"300px\" height=\"300px\" data-no-id=\"true\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/fighting-fire-with-fire\/australiafires_amo_20260528_th.jpg?fit=clip&#038;crop=faces%2Cfocalpoint&#038;w=300 300w\" alt=\"\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/fighting-fire-with-fire\/australiafires_amo_20260528_th.jpg?fit=clip&#038;crop=faces%2Cfocalpoint&#038;w=300\"><\/figure>\n<\/p>\n<p><\/a><\/p>\n<div class=\"hds-content-item-inner\">\n            <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/fighting-fire-with-fire\/\" class=\"hds-content-item-heading\" rel=\"noopener\"><\/p>\n<div class=\"hds-a11y-heading-22\">Fighting Fire With Fire<\/div>\n<\/p>\n<p><\/a><\/p>\n<div class=\"hds-content-item-readtime label margin-bottom-1\">\n                    3 min read                <\/div>\n<p class=\"margin-top-0 margin-bottom-1\">In fire-prone ecosystems in Australia\u2019s Northern Territory, prescribed burns are lit to minimize the severity of fires later in the\u2026<\/p>\n<div class=\"display-flex flex-align-center label color-carbon-60 margin-bottom-auto\"><svg version=\"1.1\" class=\"square-2 margin-right-1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" width=\"16px\" height=\"16px\" viewbox=\"0 0 16 16\" xml:space=\"preserve\"><g><g><path d=\"M8,0C3.5,0-0.1,3.7,0,8.2C0.1,12.5,3.6,16,8,16c4.4,0,8-3.6,8-8C16,3.5,12.4,0,8,0z M8,15.2 C4,15.2,0.8,12,0.8,8C0.8,4,4,0.8,8,0.8c3.9,0,7.2,3.2,7.2,7.1C15.2,11.9,12,15.2,8,15.2z\"><\/path><path d=\"M5.6,12c0.8-0.8,1.6-1.6,2.4-2.4c0.8,0.8,1.6,1.6,2.4,2.4c0-2.7,0-5.3,0-8C8.8,4,7.2,4,5.6,4 C5.6,6.7,5.6,9.3,5.6,12z\"><\/path><\/g><\/g><\/svg><span>Article<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"pagination\">\n<nav class=\"hds-pagination hds-pagination--content-lists\" role=\"navigation\" aria-label=\"Pagination Navigation\" data-mid-size=\"2\" data-end-size=\"1\" data-max-pages=\"4\">\n<span aria-current=\"page\" class=\"page-numbers current\" aria-label=\"Current Page, Page 1\" data-page-number=\"1\"><br \/>\n<span>1<\/span><\/span><br \/>\n<a class=\"page-numbers\" 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z-200\">\n<div>\n<h3 class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Subscribe to Earth Observatory Newsletters<\/span><br \/>\n\t\t\t\t\t\t\t\t<svg viewbox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg><br \/>\n\t\t\t\t\t\t\t<\/h3>\n<p class=\"margin-bottom-0 margin-top-2 color-carbon-20-important\">Subscribe to the Earth Observatory and get the Earth in your inbox.<\/p>\n<\/div>\n<\/div>\n<figure class=\"hds-media-background  \"><img fetchpriority=\"high\" decoding=\"async\" width=\"585\" height=\"425\" 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https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/iotd-banner.jpg?w=600&#038;h=338&#038;fit=crop&#038;crop=faces%2Cfocalpoint 600w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/iotd-banner.jpg?w=900&#038;h=507&#038;fit=crop&#038;crop=faces%2Cfocalpoint 900w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/iotd-banner.jpg?w=1200&#038;h=675&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1200w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/iotd-banner.jpg?w=2000&#038;h=1126&#038;fit=crop&#038;crop=faces%2Cfocalpoint 2000w\" sizes=\"auto, (max-width: 2500px) 100vw, 2500px\"><\/figure>\n<\/div>\n<p><\/a><br \/>\n\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/earth\/explore\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\" rel=\"noopener\"><\/p>\n<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n<div>\n<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Explore Earth Science<\/span><br \/>\n\t\t\t\t\t\t\t\t<svg viewbox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n<\/div>\n<\/div>\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"1920\" height=\"1920\" src=\"https:\/\/images-assets.nasa.gov\/image\/NHQ202212160009\/NHQ202212160009~large.jpg?w=1920&#038;h=1920&#038;fit=clip&#038;crop=faces%2Cfocalpoint\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" block_context=\"nasa-block\" loading=\"lazy\" srcset=\"https:\/\/images-assets.nasa.gov\/image\/NHQ202212160009\/NHQ202212160009~large.jpg?w=1920&#038;h=1920&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1920w, https:\/\/images-assets.nasa.gov\/image\/NHQ202212160009\/NHQ202212160009~large.jpg?w=150&#038;h=150&#038;fit=crop&#038;crop=faces%2Cfocalpoint 150w, https:\/\/images-assets.nasa.gov\/image\/NHQ202212160009\/NHQ202212160009~large.jpg?w=300&#038;h=300&#038;fit=crop&#038;crop=faces%2Cfocalpoint 300w, https:\/\/images-assets.nasa.gov\/image\/NHQ202212160009\/NHQ202212160009~large.jpg?w=768&#038;h=768&#038;fit=crop&#038;crop=faces%2Cfocalpoint 768w, https:\/\/images-assets.nasa.gov\/image\/NHQ202212160009\/NHQ202212160009~large.jpg?w=1024&#038;h=1024&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1024w, https:\/\/images-assets.nasa.gov\/image\/NHQ202212160009\/NHQ202212160009~large.jpg?w=1536&#038;h=1536&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1536w, https:\/\/images-assets.nasa.gov\/image\/NHQ202212160009\/NHQ202212160009~large.jpg?w=50&#038;h=50&#038;fit=crop&#038;crop=faces%2Cfocalpoint 50w, https:\/\/images-assets.nasa.gov\/image\/NHQ202212160009\/NHQ202212160009~large.jpg?w=100&#038;h=100&#038;fit=crop&#038;crop=faces%2Cfocalpoint 100w, https:\/\/images-assets.nasa.gov\/image\/NHQ202212160009\/NHQ202212160009~large.jpg?w=200&#038;h=200&#038;fit=crop&#038;crop=faces%2Cfocalpoint 200w, https:\/\/images-assets.nasa.gov\/image\/NHQ202212160009\/NHQ202212160009~large.jpg?w=400&#038;h=400&#038;fit=crop&#038;crop=faces%2Cfocalpoint 400w, https:\/\/images-assets.nasa.gov\/image\/NHQ202212160009\/NHQ202212160009~large.jpg?w=600&#038;h=600&#038;fit=crop&#038;crop=faces%2Cfocalpoint 600w, https:\/\/images-assets.nasa.gov\/image\/NHQ202212160009\/NHQ202212160009~large.jpg?w=900&#038;h=900&#038;fit=crop&#038;crop=faces%2Cfocalpoint 900w, https:\/\/images-assets.nasa.gov\/image\/NHQ202212160009\/NHQ202212160009~large.jpg?w=1200&#038;h=1200&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1200w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\"><\/figure>\n<\/div>\n<p><\/a><br \/>\n\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/earth\/data\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\" rel=\"noopener\"><\/p>\n<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n<div>\n<h3 class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Earth Science Data<\/span><br \/>\n\t\t\t\t\t\t\t\t<svg viewbox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg><br \/>\n\t\t\t\t\t\t\t<\/h3>\n<p class=\"margin-bottom-0 margin-top-2 color-carbon-20-important\">Open access to NASA\u2019s archive of Earth science data<\/p>\n<\/div>\n<\/div>\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"1536\" height=\"768\" src=\"https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/10\/biosphere-sea-2008-lrg.png?w=1536\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" block_context=\"nasa-block\" loading=\"lazy\" srcset=\"https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/10\/biosphere-sea-2008-lrg.png 3600w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/10\/biosphere-sea-2008-lrg.png?resize=300,150 300w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/10\/biosphere-sea-2008-lrg.png?resize=768,384 768w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/10\/biosphere-sea-2008-lrg.png?resize=1024,512 1024w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/10\/biosphere-sea-2008-lrg.png?resize=1536,768 1536w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/10\/biosphere-sea-2008-lrg.png?resize=2048,1024 2048w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/10\/biosphere-sea-2008-lrg.png?resize=400,200 400w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/10\/biosphere-sea-2008-lrg.png?resize=600,300 600w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/10\/biosphere-sea-2008-lrg.png?resize=900,450 900w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/10\/biosphere-sea-2008-lrg.png?resize=1200,600 1200w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/10\/biosphere-sea-2008-lrg.png?resize=2000,1000 2000w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\"><\/figure>\n<\/div>\n<p><\/a>\n\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<p class=\"wpematico_credit\"><small>Powered by <a href=\"http:\/\/www.wpematico.com\" target=\"_blank\">WPeMatico<\/a><\/small><\/p>\n<p><a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/a-week-of-smoky-skies-across-north-america\/\" target=\"_blank\" rel=\"noopener\">Get The Details&#8230;<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Brown carbon, emitted by wildland fires and tracked over the span of a week in July 2026, worsened air quality in parts of the U.S. and Canada. <a class=\"continue-reading-link\" href=\"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/a-week-of-smoky-skies-across-north-america\/\"> Continue 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