{"id":3331,"date":"2026-10-17T08:58:00","date_gmt":"2026-10-17T07:58:00","guid":{"rendered":"https:\/\/edu.ge.ch\/site\/tablettepedagogique\/?p=3331"},"modified":"2026-10-19T09:54:02","modified_gmt":"2026-10-19T08:54:02","slug":"emissions-co%e2%82%82-quelques-ordres-de-gandeur","status":"publish","type":"post","link":"https:\/\/edu.ge.ch\/site\/tablettepedagogique\/2026\/10\/17\/emissions-co%e2%82%82-quelques-ordres-de-gandeur\/","title":{"rendered":"\u00c9missions CO\u2082 : quelques ordres de gandeur"},"content":{"rendered":"<p>On entend souvent qu\u2019utiliser une IA pollue. C\u2019est vrai, mais combien ? Et par rapport \u00e0 quoi ? Vaut-il mieux renoncer \u00e0 un steak de b\u0153uf, \u00e0 un vol d&#8217;avion ou \u00e0 10&#8217;000 requ\u00eates \u00e0 ChatGPT ?<\/p>\n<p>Pour r\u00e9pondre \u00e0 ces questions, voici une page qui recense quelques gestes qui &#8220;co\u00fbtent&#8221; 10 kg de CO\u2082e: <a href=\"https:\/\/espritcritique.fbfb.eu\/comparaisonseco\/\">https:\/\/espritcritique.fbfb.eu\/comparaisonseco\/<\/a> (1)<br \/>\nPour r\u00e9pondre \u00e0 la question pr\u00e9c\u00e9dente, par exemple, une personne en Suisse \u00e9mettra 10 kg de CO\u2082e pour : environ 200g de b\u0153uf, 66km en avion ou 60&#8217;000 questions \u00e0 chatGPT ! (NB : avec l\u2019estimation plus \u00e9lev\u00e9e &#8211; aujourd&#8217;hui contest\u00e9e &#8211; de 1 g par requ\u00eate, on arrive plut\u00f4t \u00e0 10 000 questions.)<\/p>\n<p><!--more--><\/p>\n<p>Il me semble qu&#8217;il y a un v\u00e9ritable avantage \u00e0 pr\u00e9senter ces ordres de grandeur : faire des efforts partout, tout le temps est tr\u00e8s difficile mais si on sait quels gestes ont le plus d&#8217;impact, on peut cibler nos efforts. Regarder une vid\u00e9o en qualit\u00e9 r\u00e9duite sera compl\u00e8tement n\u00e9gligeable par rapport \u00e0 \u00e9viter un trajet en voiture.<\/p>\n<p>Attention, il ne s&#8217;agit pas de conclure de ces comparaisons que le num\u00e9rique ne pollue pas : il repr\u00e9sente 1,5 \u00e0 4% des \u00e9missions mondiales de gaz \u00e0 effet de serre (2).<br \/>\nMais dans une vid\u00e9o &#8220;climat et num\u00e9rique&#8221; (3), le R\u00e9veilleur remarque que :<br \/>\n1) Le num\u00e9rique est utilis\u00e9 tous les jours par une immense partie de la population mondiale pour travailler, s&#8217;informer, communiquer et se divertir (contrairement \u00e0 l&#8217;aviation, \u00e0 laquelle il est souvent compar\u00e9, qui n&#8217;est utilis\u00e9e que par une minorit\u00e9).<br \/>\n2) Il est beaucoup plus facile de d\u00e9carboner l&#8217;\u00e9lectricit\u00e9 du num\u00e9rique que les carburants de l&#8217;aviation<br \/>\n3) Exag\u00e9rer le poids du num\u00e9rique risque de focaliser nos efforts vers de &#8220;petits gestes&#8221; peu efficaces.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/espritcritique.fbfb.eu\/comparaisonseco\/\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3335\" src=\"https:\/\/edu.ge.ch\/site\/tablettepedagogique\/wp-content\/uploads\/sites\/7\/2026\/10\/2026-10-11-10_16_27-A-quoi-correspondent-10-kg-de-CO\u2082e-_-\u2014-Mozilla-Firefox-279x300.png\" alt=\"\" width=\"500\" height=\"539\" srcset=\"https:\/\/edu.ge.ch\/site\/tablettepedagogique\/wp-content\/uploads\/sites\/7\/2026\/10\/2026-10-11-10_16_27-A-quoi-correspondent-10-kg-de-CO\u2082e-_-\u2014-Mozilla-Firefox-279x300.png 279w, https:\/\/edu.ge.ch\/site\/tablettepedagogique\/wp-content\/uploads\/sites\/7\/2026\/10\/2026-10-11-10_16_27-A-quoi-correspondent-10-kg-de-CO\u2082e-_-\u2014-Mozilla-Firefox-768x827.png 768w, https:\/\/edu.ge.ch\/site\/tablettepedagogique\/wp-content\/uploads\/sites\/7\/2026\/10\/2026-10-11-10_16_27-A-quoi-correspondent-10-kg-de-CO\u2082e-_-\u2014-Mozilla-Firefox.png 896w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>____<\/p>\n<p>*CO\u2082e signifie \u00ab \u00e9quivalent CO\u2082 \u00bb et permet de regrouper diff\u00e9rents gaz \u00e0 effet de serre selon leur effet climatique.<\/p>\n<p>Sources :<br \/>\n(1) <a href=\"https:\/\/espritcritique.fbfb.eu\/comparaisonseco\/\">https:\/\/espritcritique.fbfb.eu\/comparaisonseco\/<\/a> . Toutes les sources pour les calculs sont donn\u00e9es dans les d\u00e9tails de chaque carte, et comme je suis l&#8217;auteure de cette page, n&#8217;h\u00e9sitez pas \u00e0 m&#8217;\u00e9crire si vous avez des suggestions !<\/p>\n<p>(2) <i>Digital technologies and the environment: OECD Digital Economy Outlook 2024 (Volume 2). <\/i>(2024, November 19). OECD. https:\/\/www.oecd.org\/en\/publications\/oecd-digital-economy-outlook-2024-volume-2_3adf705b-en\/full-report\/digital-technologies-and-the-environment_c0701b0b.html<\/p>\n<p>(3) Le R\u00e9veilleur. (2025, July 8). <i>Faut-il vraiment culpabiliser en regardant YouTube en 4K ?<\/i> [Video]. YouTube. https:\/\/www.youtube.com\/watch?v=ln5iQtd7XZI<\/p>\n<p>Pour aller plus loin sur les questions de pollution num\u00e9rique, ces trois vid\u00e9os peuvent vous int\u00e9resser :<\/p>\n<p><iframe loading=\"lazy\" title=\"Faut-il supprimer ses mails pour la plan\u00e8te? avec @lereveilleur\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/UyGkxWA72tk?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p><iframe loading=\"lazy\" title=\"Faut-il vraiment culpabiliser en regardant YouTube\u00a0en\u00a04K\u00a0?@ApresLaBiere@labiologiefaitdesvideos\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/ln5iQtd7XZI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<p><iframe loading=\"lazy\" title=\"Tout le monde se trompe sur l\u2019eau consomm\u00e9e par l\u2019IA\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/Qddzc5iqP5U?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>On entend souvent qu\u2019utiliser une IA pollue. C\u2019est vrai, mais combien ? Et par rapport \u00e0 quoi ? Vaut-il mieux renoncer \u00e0 un steak de b\u0153uf, \u00e0 un vol d&#8217;avion ou \u00e0 10&#8217;000 requ\u00eates \u00e0 ChatGPT ? Pour r\u00e9pondre \u00e0 ces questions, voici une page qui recense quelques gestes qui &#8220;co\u00fbtent&#8221; 10 kg de CO\u2082e: &#8230; <a title=\"\u00c9missions CO\u2082 : quelques ordres de gandeur\" class=\"read-more\" href=\"https:\/\/edu.ge.ch\/site\/tablettepedagogique\/2026\/10\/17\/emissions-co%e2%82%82-quelques-ordres-de-gandeur\/\" aria-label=\"En savoir plus sur \u00c9missions CO\u2082 : quelques ordres de gandeur\">Lire la suite<\/a><\/p>\n","protected":false},"author":344,"featured_media":3332,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[366,374,332,1],"tags":[],"class_list":["post-3331","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-enjeux-du-numerique","category-ia","category-intelligence-artificielle","category-non-classe"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u00c9missions CO\u2082 : quelques ordres de gandeur - Le blog des formatrices et formateurs du SEM<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/edu.ge.ch\/site\/tablettepedagogique\/2026\/10\/17\/emissions-co\u2082-quelques-ordres-de-gandeur\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00c9missions CO\u2082 : quelques ordres de gandeur - Le blog des formatrices et formateurs du SEM\" \/>\n<meta property=\"og:description\" content=\"On entend souvent qu\u2019utiliser une IA pollue. C\u2019est vrai, mais combien ? Et par rapport \u00e0 quoi ? Vaut-il mieux renoncer \u00e0 un steak de b\u0153uf, \u00e0 un vol d&#8217;avion ou \u00e0 10&#8217;000 requ\u00eates \u00e0 ChatGPT ? Pour r\u00e9pondre \u00e0 ces questions, voici une page qui recense quelques gestes qui &#8220;co\u00fbtent&#8221; 10 kg de CO\u2082e: ... 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