{"id":903,"date":"2013-01-23T20:03:13","date_gmt":"2013-01-23T12:03:13","guid":{"rendered":"http:\/\/cires.colorado.edu\/blogs\/mongolia\/?p=903"},"modified":"2014-06-05T21:26:02","modified_gmt":"2014-06-05T21:26:02","slug":"new-comprehensive-bc-impact-on-climate-report-out-last-week","status":"publish","type":"post","link":"https:\/\/ciresblogs.colorado.edu\/mongolia\/2013\/01\/23\/new-comprehensive-bc-impact-on-climate-report-out-last-week\/","title":{"rendered":"New, comprehensive BC impact on climate report out last week"},"content":{"rendered":"<p>Last week, an amazingly comprehensive, open-access report came out in <a href=\"http:\/\/onlinelibrary.wiley.com\/journal\/10.1002\/(ISSN)2169-8996\" target=\"_blank\">JGR-Atmospheres<\/a> on <a href=\"http:\/\/en.wikipedia.org\/wiki\/Black_carbon\" target=\"_blank\">black carbon<\/a> (BC): <a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jgrd.50171\/abstract\" target=\"_blank\">&#8220;Bounding the role of black carbon in the climate system: A scientific assessment&#8221;<\/a> by Tami Bond and many, many co-authors. If you&#8217;d like something shorter to read, stick to the executive summary in the beginning or this write-up\u00a0<a href=\"http:\/\/www.agu.org\/news\/press\/pr_archives\/2013\/2013-01.shtml\" target=\"_blank\">here<\/a> .<\/p>\n<p>It&#8217;s divided up into 8 sections that cover all things BC, from its basic properties to emissions inventory by location and source to its direct and indirect effects on climate.<\/p>\n<p>One of the big take-aways from the work is that it found BC plays a larger role on climate impact than previously estimated, with roughly two-thirds the total forcing (or, put more simply, the warming effect) of carbon dioxide. Though, it&#8217;s complicated to fully tease out BC&#8217;s effect on climate for many reasons. One of those reasons is that BC is almost <em>never<\/em> found as a pure substance in the atmosphere; it&#8217;s co-emitted with other species that can be warming <em>or<\/em> cooling agents (and just what species and how much depend on the emission type). Also, the ways in which BC affects clouds\/precipitation is complicated and not well understood.<\/p>\n<p>So where and what are the sources of BC? Figure 3.3 from Bond et al. (2013) sums it up:<\/p>\n<div id=\"attachment_872\" style=\"width: 612px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/ciresblogs.colorado.edu\/mongolia\/wp-content\/uploads\/sites\/22\/2013\/01\/Screen-shot-2013-01-22-at-4.16.30-PM.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-872\" class=\"size-full wp-image-872\" src=\"http:\/\/ciresblogs.colorado.edu\/mongolia\/wp-content\/uploads\/sites\/22\/2013\/01\/Screen-shot-2013-01-22-at-4.16.30-PM.png\" alt=\"\" width=\"602\" height=\"717\" srcset=\"https:\/\/ciresblogs.colorado.edu\/mongolia\/wp-content\/uploads\/sites\/22\/2013\/01\/Screen-shot-2013-01-22-at-4.16.30-PM.png 602w, https:\/\/ciresblogs.colorado.edu\/mongolia\/wp-content\/uploads\/sites\/22\/2013\/01\/Screen-shot-2013-01-22-at-4.16.30-PM-251x300.png 251w\" sizes=\"auto, (max-width: 602px) 100vw, 602px\" \/><\/a><p id=\"caption-attachment-872\" class=\"wp-caption-text\">Figure 3.3 from Bond et al. (JGR, 2013)<\/p><\/div>\n<p>&nbsp;<\/p>\n<p>The major sources of BC in the world come from East Asia, Africa, and Latin America. And the most dominant source of BC is open-burning.<\/p>\n<p>And lastly, a great figure that explains the current state of our knowledge of BC&#8217;s effect on climate is Figure 8.4 from Bond et al. (2013):<\/p>\n<div id=\"attachment_875\" style=\"width: 710px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jgrd.50171\/abstract\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-875\" class=\"size-large wp-image-875\" src=\"http:\/\/ciresblogs.colorado.edu\/mongolia\/wp-content\/uploads\/sites\/22\/2013\/01\/Screen-shot-2013-01-23-at-1.42.42-PM-1024x670.png\" alt=\"\" width=\"700\" height=\"458\" srcset=\"https:\/\/ciresblogs.colorado.edu\/mongolia\/wp-content\/uploads\/sites\/22\/2013\/01\/Screen-shot-2013-01-23-at-1.42.42-PM-1024x670.png 1024w, https:\/\/ciresblogs.colorado.edu\/mongolia\/wp-content\/uploads\/sites\/22\/2013\/01\/Screen-shot-2013-01-23-at-1.42.42-PM-300x196.png 300w, https:\/\/ciresblogs.colorado.edu\/mongolia\/wp-content\/uploads\/sites\/22\/2013\/01\/Screen-shot-2013-01-23-at-1.42.42-PM.png 1046w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><p id=\"caption-attachment-875\" class=\"wp-caption-text\">Figure 8.4 from Bond et al. (JGR, 2013).<\/p><\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Last week, an amazingly comprehensive, open-access report came out in JGR-Atmospheres on black carbon (BC): &#8220;Bounding the role of black carbon in the climate system: A scientific assessment&#8221; by Tami Bond and many, many co-authors. If you&#8217;d like something shorter to read, stick to the executive summary in the beginning or this write-up\u00a0here .&hellip; <a class=\"read-more\" href=\"https:\/\/ciresblogs.colorado.edu\/mongolia\/2013\/01\/23\/new-comprehensive-bc-impact-on-climate-report-out-last-week\/\">Read More<\/a><\/p>\n","protected":false},"author":27,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,3],"tags":[],"class_list":["post-903","post","type-post","status-publish","format-standard","hentry","category-air-pollution","category-atmospheric-science"],"jetpack_featured_media_url":"","publishpress_future_action":{"enabled":false,"date":"2026-06-06 17:48:45","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category"},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/ciresblogs.colorado.edu\/mongolia\/wp-json\/wp\/v2\/posts\/903","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ciresblogs.colorado.edu\/mongolia\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ciresblogs.colorado.edu\/mongolia\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ciresblogs.colorado.edu\/mongolia\/wp-json\/wp\/v2\/users\/27"}],"replies":[{"embeddable":true,"href":"https:\/\/ciresblogs.colorado.edu\/mongolia\/wp-json\/wp\/v2\/comments?post=903"}],"version-history":[{"count":1,"href":"https:\/\/ciresblogs.colorado.edu\/mongolia\/wp-json\/wp\/v2\/posts\/903\/revisions"}],"predecessor-version":[{"id":906,"href":"https:\/\/ciresblogs.colorado.edu\/mongolia\/wp-json\/wp\/v2\/posts\/903\/revisions\/906"}],"wp:attachment":[{"href":"https:\/\/ciresblogs.colorado.edu\/mongolia\/wp-json\/wp\/v2\/media?parent=903"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ciresblogs.colorado.edu\/mongolia\/wp-json\/wp\/v2\/categories?post=903"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ciresblogs.colorado.edu\/mongolia\/wp-json\/wp\/v2\/tags?post=903"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}