{"id":56977,"date":"2026-03-12T10:52:50","date_gmt":"2026-03-12T13:52:50","guid":{"rendered":"https:\/\/sites.usp.br\/rcgi\/?p=56977"},"modified":"2026-04-30T13:54:44","modified_gmt":"2026-04-30T16:54:44","slug":"tco%e2%82%82e-a-unidade-por-tras-do-mercado-de-carbono","status":"publish","type":"post","link":"https:\/\/sites.usp.br\/rcgi\/tco%e2%82%82e-a-unidade-por-tras-do-mercado-de-carbono\/","title":{"rendered":"TCO\u2082e:  The unit behind the carbon market"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">In the carbon market, everything revolves around an acronym that may seem technical but is fundamental: tCO\u2082e. It stands for tonne of carbon dioxide equivalent (CO\u2082e) \u2014 a standardized way of expressing the climate impact of different greenhouse gases in a single comparable unit.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">But why not talk only about CO\u2082? Because there are other GHGs (Greenhouse Gases) with different levels of impact, such as methane (CH\u2084), nitrous oxide (N\u2082O), and fluorinated industrial gases. Each of them warms the atmosphere differently and over different timeframes. To make everything comparable, we convert these gases into a common basis: CO\u2082e.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The logic is simple:<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"> Gas emissions \u00d7 GWP = CO\u2082e.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">GWP (Global Warming Potential) works as an equivalence factor. It indicates how much a gas warms the atmosphere compared to CO\u2082 over a given time horizon (such as 20 or 100 years).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Example considering a 100-year horizon (GWP100), according to methodologies from the Intergovernmental Panel on Climate Change (IPCC):<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"> \u2022 1 tonne of CH\u2084 \u2248 27 tCO\u2082e<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"> \u2022 1 tonne of N\u2082O \u2248 273 tCO\u2082e<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"> (Values may vary depending on the report and methodology used.)<\/span><\/p>\n<p><span style=\"font-weight: 400;\">And why does this matter in the carbon market? Because, in general, 1 carbon credit corresponds to 1 tCO\u2082e. In other words, the entire logic of accounting, offsetting, and trading depends on this conversion.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A simple analogy: CO\u2082e is like converting currencies. GWP is the \u201cexchange rate\u201d that translates different gases into a common unit.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">That\u2019s why it\u2019s always worth asking:<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"> \u201cCO\u2082e with which GWP and over what time period?\u201d (for example, GWP100 = 100 years).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Understanding tCO\u2082e is not just a technical detail \u2014 it is the foundation of integrity and comparability in the carbon market.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the carbon market, everything revolves around an acronym that may seem technical but is fundamental: tCO\u2082e. It stands for tonne of carbon dioxide equivalent (CO\u2082e) \u2014 a standardized way of expressing the climate impact of different greenhouse gases in a single comparable unit. But why not talk only about CO\u2082? Because there are other &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/sites.usp.br\/rcgi\/tco%e2%82%82e-a-unidade-por-tras-do-mercado-de-carbono\/\" class=\"more-link\">Continue lendo<span class=\"screen-reader-text\"> &#8220;TCO\u2082e:  The unit behind the carbon market&#8221;<\/span><\/a><\/p>\n","protected":false},"author":23640,"featured_media":56978,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false,"_links_to":"","_links_to_target":""},"categories":[2901],"tags":[],"class_list":["post-56977","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-carbon-reg-content"],"acf":[],"jetpack_featured_media_url":"https:\/\/sites.usp.br\/rcgi\/wp-content\/uploads\/sites\/1196\/2026\/03\/1.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/sites.usp.br\/rcgi\/wp-json\/wp\/v2\/posts\/56977","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.usp.br\/rcgi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.usp.br\/rcgi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.usp.br\/rcgi\/wp-json\/wp\/v2\/users\/23640"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.usp.br\/rcgi\/wp-json\/wp\/v2\/comments?post=56977"}],"version-history":[{"count":3,"href":"https:\/\/sites.usp.br\/rcgi\/wp-json\/wp\/v2\/posts\/56977\/revisions"}],"predecessor-version":[{"id":57775,"href":"https:\/\/sites.usp.br\/rcgi\/wp-json\/wp\/v2\/posts\/56977\/revisions\/57775"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sites.usp.br\/rcgi\/wp-json\/wp\/v2\/media\/56978"}],"wp:attachment":[{"href":"https:\/\/sites.usp.br\/rcgi\/wp-json\/wp\/v2\/media?parent=56977"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.usp.br\/rcgi\/wp-json\/wp\/v2\/categories?post=56977"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.usp.br\/rcgi\/wp-json\/wp\/v2\/tags?post=56977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}