{"id":25980,"date":"2024-06-16T12:00:49","date_gmt":"2024-06-16T10:00:49","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=25980"},"modified":"2024-06-14T09:19:53","modified_gmt":"2024-06-14T07:19:53","slug":"enorme-succes-mondial-les-gaz-destructeurs-dozone-disparaissent-plus-rapidement-que-prevu","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/enorme-succes-mondial-les-gaz-destructeurs-dozone-disparaissent-plus-rapidement-que-prevu\/","title":{"rendered":"\u00ab \u00c9norme succ\u00e8s mondial \u00bb : les gaz destructeurs d\u2019ozone disparaissent plus rapidement que pr\u00e9vu"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>Des scientifiques ont d\u00e9clar\u00e9 mardi que les efforts internationaux visant \u00e0 prot\u00e9ger la couche d&rsquo;ozone avaient \u00e9t\u00e9 un \u00ab \u00e9norme succ\u00e8s mondial \u00bb apr\u00e8s avoir r\u00e9v\u00e9l\u00e9 que les gaz nocifs pr\u00e9sents dans l&rsquo;atmosph\u00e8re diminuaient plus rapidement que pr\u00e9vu.<\/p>\n<p>Le Protocole de Montr\u00e9al sign\u00e9 en 1987 visait \u00e0 \u00e9liminer progressivement les substances appauvrissant la couche d&rsquo;ozone pr\u00e9sentes principalement dans les syst\u00e8mes de r\u00e9frig\u00e9ration, de climatisation et les a\u00e9rosols.<\/p>\n<p>Une nouvelle \u00e9tude r\u00e9v\u00e8le que les niveaux atmosph\u00e9riques d&rsquo;hydrochlorofluorocarbures (HCFC), des gaz nocifs responsables des trous dans la couche d&rsquo;ozone , ont culmin\u00e9 en 2021, soit cinq ans avant les pr\u00e9visions.<\/p>\n<p>\u00ab\u00a0Cela a \u00e9t\u00e9 un \u00e9norme succ\u00e8s mondial. Nous constatons que les choses vont dans la bonne direction\u00a0\u00bb, a d\u00e9clar\u00e9 \u00e0 l&rsquo;AFP l&rsquo;auteur principal de l&rsquo;\u00e9tude, Luke Western, de l&rsquo;Universit\u00e9 de Bristol au Royaume-Uni.<\/p>\n<p>Les CFC les plus nocifs ont \u00e9t\u00e9 progressivement \u00e9limin\u00e9s en 2010 dans le but de prot\u00e9ger la couche d\u2019ozone \u2013 le bouclier qui prot\u00e8ge la vie sur Terre des niveaux nocifs de rayons ultraviolets du Soleil.<\/p>\n<p>Les produits chimiques HCFC qui les ont remplac\u00e9s devraient \u00eatre \u00e9limin\u00e9s d\u2019ici 2040.<\/p>\n<p>Cette \u00e9tude, publi\u00e9e dans la revue Nature Climate Change , a examin\u00e9 les niveaux de ces polluants dans l&rsquo;atmosph\u00e8re en utilisant les donn\u00e9es de l&rsquo;Advanced Global Atmospheric Gases Experiment et de la National Atmospheric and Oceanic Administration des \u00c9tats-Unis.<\/p>\n<p>Western a attribu\u00e9 la forte baisse des HCFC \u00e0 l&rsquo;efficacit\u00e9 du Protocole de Montr\u00e9al, ainsi qu&rsquo;\u00e0 des r\u00e9glementations nationales plus strictes et \u00e0 un changement de l&rsquo;industrie en pr\u00e9vision de l&rsquo;interdiction prochaine de ces polluants.<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p>\u00ab\u00a0En termes de politique environnementale, il existe un certain optimisme quant \u00e0 la capacit\u00e9 de ces trait\u00e9s environnementaux \u00e0 fonctionner s&rsquo;ils sont correctement adopt\u00e9s et correctement suivis\u00a0\u00bb, a d\u00e9clar\u00e9 Western.<\/p>\n<p>Les CFC et les HCFC sont \u00e9galement de puissants gaz \u00e0 effet de serre, ce qui signifie que leur diminution contribue \u00e9galement \u00e0 la lutte contre le r\u00e9chauffement climatique.<\/p>\n<p>Les CFC peuvent persister dans l&rsquo;atmosph\u00e8re pendant des centaines d&rsquo;ann\u00e9es, tandis que les HCFC ont une dur\u00e9e de vie d&rsquo;environ deux d\u00e9cennies, a d\u00e9clar\u00e9 Western.<\/p>\n<p>M\u00eame une fois qu\u2019ils ne seront plus produits, l\u2019utilisation pass\u00e9e de ces produits continuera \u00e0 affecter la couche d\u2019ozone pendant des ann\u00e9es.<\/p>\n<p>Le Programme des Nations Unies pour l\u2019environnement a estim\u00e9 en 2023 qu\u2019il faudrait quatre d\u00e9cennies avant que la couche d\u2019ozone retrouve les niveaux ant\u00e9rieurs \u00e0 la d\u00e9tection du trou dans les ann\u00e9es 1980.<\/p>\n<figure id=\"attachment_25994\" aria-describedby=\"caption-attachment-25994\" style=\"width: 1024px\" class=\"wp-caption alignnone\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"25994\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/enorme-succes-mondial-les-gaz-destructeurs-dozone-disparaissent-plus-rapidement-que-prevu\/carte-thermique-illustrant-les-concentrations-dozone-au-dessus-de-lantarctique-en-2023\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/Carte-thermique-illustrant-les-concentrations-dozone-au-dessus-de-lAntarctique-en-2023.jpg?fit=1024%2C415&amp;ssl=1\" data-orig-size=\"1024,415\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"Carte thermique illustrant les concentrations d\u2019ozone au-dessus de l\u2019Antarctique en 2023\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Carte thermique illustrant les concentrations d\u2019ozone au-dessus de l\u2019Antarctique en 2023. (Ozone Watch\/NASA)&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/Carte-thermique-illustrant-les-concentrations-dozone-au-dessus-de-lAntarctique-en-2023.jpg?fit=800%2C324&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/Carte-thermique-illustrant-les-concentrations-dozone-au-dessus-de-lAntarctique-en-2023.jpg?resize=1024%2C415&#038;ssl=1\" alt=\"\" width=\"1024\" height=\"415\" class=\"size-full wp-image-25994\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/Carte-thermique-illustrant-les-concentrations-dozone-au-dessus-de-lAntarctique-en-2023.jpg?w=1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/Carte-thermique-illustrant-les-concentrations-dozone-au-dessus-de-lAntarctique-en-2023.jpg?resize=300%2C122&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/Carte-thermique-illustrant-les-concentrations-dozone-au-dessus-de-lAntarctique-en-2023.jpg?resize=800%2C324&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/Carte-thermique-illustrant-les-concentrations-dozone-au-dessus-de-lAntarctique-en-2023.jpg?resize=768%2C311&amp;ssl=1 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-25994\" class=\"wp-caption-text\">Carte thermique illustrant les concentrations d\u2019ozone au-dessus de l\u2019Antarctique en 2023. (Ozone Watch\/NASA)<\/figcaption><\/figure>\n<p>\u00a9 Agence France-Presse<\/p>\n<p>Adaptation <a href=\"https:\/\/www.laterredufutur.com\/accueil\/\" rel=\"noopener\" target=\"_blank\">Terra Projects<\/a><\/p>\n<p>Source: <a href=\"https:\/\/www.sciencealert.com\/huge-global-success-ozone-killing-gases-fading-faster-than-predicted\" rel=\"noopener\" target=\"_blank\">https:\/\/www.sciencealert.com\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"25980\">(193)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Des scientifiques ont d\u00e9clar\u00e9 mardi que les efforts internationaux visant \u00e0 prot\u00e9ger la couche d&rsquo;ozone avaient \u00e9t\u00e9 un \u00ab \u00e9norme&#8230;<\/p>\n","protected":false},"author":1,"featured_media":25994,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[28],"tags":[1252,54,297,43],"class_list":["post-25980","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pollution","tag-antarctique","tag-carte","tag-ozone","tag-pollution","wpcat-28-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/Carte-thermique-illustrant-les-concentrations-dozone-au-dessus-de-lAntarctique-en-2023.jpg?fit=1024%2C415&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-6L2","jetpack-related-posts":[{"id":7796,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-couche-dozone-en-bonne-voie-de-guerison\/","url_meta":{"origin":25980,"position":0},"title":"La couche d\u2019ozone en bonne voie de gu\u00e9rison","author":"Admin","date":"1 septembre 2015","format":false,"excerpt":"La couche d\u2019ozone stratosph\u00e9rique est toujours convalescente, mais les scientifiques esp\u00e8rent sa gu\u00e9rison avant 2050 dans la plupart des r\u00e9gions et une r\u00e9sorption compl\u00e8te du c\u00e9l\u00e8bre \u00ab trou dans la couche d\u2019ozone \u00bb au-dessus de l\u2019Antarctique vers la fin du si\u00e8cle. L\u2019Organisation m\u00e9t\u00e9orologique mondiale (OMM) et le Programme des Nations\u2026","rel":"","context":"Dans &quot;Pollution&quot;","block_context":{"text":"Pollution","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/pollution\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/couche-nuageuse-terrestre.jpg?fit=1200%2C769&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/couche-nuageuse-terrestre.jpg?fit=1200%2C769&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/couche-nuageuse-terrestre.jpg?fit=1200%2C769&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/couche-nuageuse-terrestre.jpg?fit=1200%2C769&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/couche-nuageuse-terrestre.jpg?fit=1200%2C769&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":3177,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-trou-dozone-refait-parler-de-lui\/","url_meta":{"origin":25980,"position":1},"title":"Le Trou d&rsquo;ozone refait parler de lui","author":"Admin","date":"14 d\u00e9cembre 2005","format":false,"excerpt":"Cette ann\u00e9e encore, l'Agence spatiale europ\u00e9enne (ESA) suit de pr\u00e8s la croissance du trou de la couche d'ozone au-dessus de l'Antarctique. Le trou mesur\u00e9 en 2005 est important pour ce moment de l'ann\u00e9e; si l'on se base sur les r\u00e9sultats de la derni\u00e8re d\u00e9cennie, seuls les trous r\u00e9pertori\u00e9s en 1996\u2026","rel":"","context":"Dans &quot;Pollution&quot;","block_context":{"text":"Pollution","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/pollution\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/ozone-carte-du-monde.jpeg?fit=1151%2C400&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/ozone-carte-du-monde.jpeg?fit=1151%2C400&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/ozone-carte-du-monde.jpeg?fit=1151%2C400&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/ozone-carte-du-monde.jpeg?fit=1151%2C400&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/ozone-carte-du-monde.jpeg?fit=1151%2C400&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":2929,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-couche-dozone-de-lhemisphere-nord\/","url_meta":{"origin":25980,"position":2},"title":"La couche d&rsquo;ozone de l&rsquo;h\u00e9misph\u00e8re nord","author":"Admin","date":"3 juin 2005","format":false,"excerpt":"Le froid extr\u00eame observ\u00e9 cet hiver par les scientifiques est un sujet de pr\u00e9occupation et soul\u00e8ve un certain nombre de questions: quelle sera la taille du trou dans la couche d\u2019ozone ? Quelles sera l\u2019augmentation des rayonnements ultraviolets et dans quels seront les pays concern\u00e9s ? Pourquoi la stratosph\u00e8re arctique\u2026","rel":"","context":"Dans &quot;Pollution&quot;","block_context":{"text":"Pollution","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/pollution\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/ozeurope.gif?fit=342%2C351&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":3626,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-terre-bouillone\/","url_meta":{"origin":25980,"position":3},"title":"La Terre Bouillone","author":"Admin","date":"8 septembre 2006","format":false,"excerpt":"Bien des \u00e9l\u00e9ments nous d\u00e9montre que si un refroidissement n'intervenait pas \u00e0 cause du r\u00e9chauffement, la situation pourrait \u00eatre pire. Nous vivons un changement climatique majeur, qu'on se le dise. De l'ozone stratosph\u00e9rique, couche protectrice de rayons mortels solaires ; des hydrates de m\u00e9thane, subtance aglutin\u00e9e sur le fond oc\u00e9anique\u2026","rel":"","context":"Dans &quot;Climat&quot;","block_context":{"text":"Climat","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/climat\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/incendie.gif?fit=360%2C240&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":3682,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-couche-dozone-dans-larctique\/","url_meta":{"origin":25980,"position":4},"title":"La couche d&rsquo;ozone dans l&rsquo;Arctique","author":"Admin","date":"4 octobre 2006","format":false,"excerpt":"Pendant que l'ensemble des m\u00e9dias se pr\u00e9ocupent du trou\u00a0d'ozone stratosph\u00e9rique de l'Antarctique qui vient de battre tous les records, voil\u00e0 que l'ozone stratosph\u00e9rique de l'arctique ne se porte vraiment pas mieux. Ici le trou d'ozone au Canada... L\u2019Exp\u00e9rience sur la chimie atmosph\u00e9rique (ACE) men\u00e9e \u00e0 bord du nouveau satellite scientifique\u2026","rel":"","context":"Dans &quot;Pollution&quot;","block_context":{"text":"Pollution","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/pollution\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1425,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-rechauffement-climatique-est-cause-par-les-cfc-et-non-pas-le-co2\/","url_meta":{"origin":25980,"position":5},"title":"Le r\u00e9chauffement climatique est caus\u00e9 par les CFC et non pas le CO2","author":"Admin","date":"6 juin 2013","format":false,"excerpt":"Selon une \u00e9tude, le r\u00e9chauffement climatique est caus\u00e9 par les chlorofluorocarbones qui interagissent avec les rayons cosmiques, et non le dioxyde de carbone \u00c0 l'Universit\u00e9 de Waterloo, une d\u00e9claration extraordinaire, bien que plausible, en raison du fait que les chlorofluorocarbones ont une concentration tr\u00e8s \u00e9lev\u00e9e par rapport au CO2, influeraient\u2026","rel":"","context":"Dans &quot;Climat&quot;","block_context":{"text":"Climat","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/climat\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/25980","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=25980"}],"version-history":[{"count":2,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/25980\/revisions"}],"predecessor-version":[{"id":25995,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/25980\/revisions\/25995"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/25994"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=25980"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=25980"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=25980"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}