{"id":126,"date":"2024-04-03T16:11:00","date_gmt":"2024-04-03T14:11:00","guid":{"rendered":"https:\/\/kordee.fr\/?p=126"},"modified":"2024-09-03T16:15:07","modified_gmt":"2024-09-03T14:15:07","slug":"les-limites-planetaires","status":"publish","type":"post","link":"https:\/\/kordee.fr\/index.php\/2024\/04\/03\/les-limites-planetaires\/","title":{"rendered":"Les limites plan\u00e9taires"},"content":{"rendered":"\n<p>Evoqu\u00e9es dans les m\u00e9dias en septembre 2023 lors de leur derni\u00e8re mise \u00e0 jour, que sont les neufs limites plan\u00e9taires \ud83c\udf0d ? d&rsquo;o\u00f9 viennent-elles et comment les lire ? Lesquelles sont franchies ? Et surtout quel int\u00e9r\u00eat pour un d\u00e9cideur ?<br><br>Pour tout comprendre je recommande ce document tr\u00e8s bien fait (complet avec une synth\u00e8se tr\u00e8s accessible en d\u00e9but d&rsquo;ouvrage) publi\u00e9 par le <a href=\"https:\/\/www.linkedin.com\/company\/cgdd-commissariat-general-au-developpement-durable\/\">CGDD &#8211; Commissariat g\u00e9n\u00e9ral au d\u00e9veloppement durable<\/a> : <a href=\"https:\/\/www.statistiques.developpement-durable.gouv.fr\/edition-numerique\/la-france-face-aux-neuf-limites-planetaires\/index\">https:\/\/www.statistiques.developpement-durable.gouv.fr\/edition-numerique\/la-france-face-aux-neuf-limites-planetaires\/index<\/a><br><br>J&rsquo;en retiens notamment:<br>\u2705 objectif clair: d\u00e9finir un espace de fonctionnement s\u00fbr pour l&rsquo;humanit\u00e9<br>\u2705 d\u00e9finition et mesure de processus physiques, biog\u00e9ochimiques, \u00e9cologiques<br>\u2705 chaque limite est exprim\u00e9e ind\u00e9pendamment des pr\u00e9f\u00e9rences, valeurs, ou des compromis de faisabilit\u00e9 politico-socio-\u00e9conomique des humains<br>\ud83d\udd36 en cons\u00e9quence elles ne donnent pas en elles-m\u00eames d&rsquo;indication sur le chemin \u00e0 suivre pour rester\/revenir dans un espace de fonctionnement s\u00fbr<br>\u2705 pour chaque processus des variables de contr\u00f4le avec une valeur fronti\u00e8re: \u00e0 l&rsquo;int\u00e9rieur le syst\u00e8me est stable au del\u00e0 c&rsquo;est l&rsquo;incertitude, puis une valeur limite au del\u00e0 de laquelle le syst\u00e8me est dans un \u00e9tat vraiment inconnu et d\u00e9favorable \u00e0 l&rsquo;humanit\u00e9. On peut donc pour chaque th\u00e8me \u00e9valuer la situation m\u00eame si\u2026<br>\ud83d\udd36 \u2026 certaines variables n&rsquo;ont pas encore de seuil et\/ou n&rsquo;ont pas \u00e9t\u00e9 mesur\u00e9es<br>\ud83d\udd36 elles \u00e9tudient le syst\u00e8me Terre, difficilement d\u00e9clinable sur des territoires plus petits, en revanche le document consacre une section \u00e0 l&rsquo;utilisation du cadre des limites plan\u00e9taires \u00e0 l\u2019\u00e9chelle\u00a0locale avec un exemple entreprise<br>\u2705 elles sont donc \ud835\udc2e\ud835\udc27 \ud835\udc1e\ud835\udc31\ud835\udc1c\ud835\udc1e\ud835\udc25\ud835\udc25\ud835\udc1e\ud835\udc27\ud835\udc2d \ud835\udc1c\ud835\udc1a\ud835\udc1d\ud835\udc2b\ud835\udc1e \ud835\udc1d\ud835\udc1e \ud835\udc2b\u00e9\ud835\udc1f\u00e9\ud835\udc2b\ud835\udc1e\ud835\udc27\ud835\udc1c\ud835\udc1e \ud835\udc29\ud835\udc28\ud835\udc2e\ud835\udc2b \ud835\udc29\ud835\udc1e\ud835\udc27\ud835\udc2c\ud835\udc1e\ud835\udc2b \ud835\udc25&rsquo;\ud835\udc1e\ud835\udc26\ud835\udc29\ud835\udc2b\ud835\udc1e\ud835\udc22\ud835\udc27\ud835\udc2d\ud835\udc1e \u00e9\ud835\udc1c\ud835\udc28\ud835\udc25\ud835\udc28\ud835\udc20\ud835\udc22\ud835\udc2a\ud835\udc2e\ud835\udc1e \ud835\udc1d\ud835\udc1e \ud835\udc2c\ud835\udc28\ud835\udc27 \ud835\udc1a\ud835\udc1c\ud835\udc2d\ud835\udc22\ud835\udc2f\ud835\udc22\ud835\udc2d\u00e9 \ud835\udc1d\ud835\udc1e \ud835\udc26\ud835\udc1a\ud835\udc27\ud835\udc22\u00e8\ud835\udc2b\ud835\udc1e \ud835\udc1c\ud835\udc28\ud835\udc26\ud835\udc29\ud835\udc25\u00e8\ud835\udc2d\ud835\udc1e \ud835\udc1e\ud835\udc27 \ud835\udc2c\ud835\udc1e \ud835\udc2a\ud835\udc2e\ud835\udc1e\ud835\udc2c\ud835\udc2d\ud835\udc22\ud835\udc28\ud835\udc27\ud835\udc27\ud835\udc1a\ud835\udc27\ud835\udc2d \ud835\udc2c\ud835\udc2e\ud835\udc2b \ud835\udc1c\ud835\udc28\ud835\udc26\ud835\udc26\ud835\udc1e\ud835\udc27\ud835\udc2d \ud835\udc1c\ud835\udc1e\ud835\udc2d\ud835\udc2d\ud835\udc1e \ud835\udc1a\ud835\udc1c\ud835\udc2d\ud835\udc22\ud835\udc2f\ud835\udc22\ud835\udc2d\u00e9 \ud835\udc1c\ud835\udc28\ud835\udc27\ud835\udc2d\ud835\udc2b\ud835\udc22\ud835\udc1b\ud835\udc2e\ud835\udc1e \u00e0 \ud835\udc1c\ud835\udc21\ud835\udc1a\ud835\udc2a\ud835\udc2e\ud835\udc1e \ud835\udc2f\ud835\udc1a\ud835\udc2b\ud835\udc22\ud835\udc1a\ud835\udc1b\ud835\udc25\ud835\udc1e<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Evoqu\u00e9es dans les m\u00e9dias en septembre 2023 lors de leur derni\u00e8re mise \u00e0 jour, que sont les neufs limites plan\u00e9taires \ud83c\udf0d ? d&rsquo;o\u00f9 viennent-elles et comment les lire ? Lesquelles sont franchies ? Et surtout quel int\u00e9r\u00eat pour un d\u00e9cideur ? Pour tout comprendre je recommande ce document tr\u00e8s bien fait (complet avec une synth\u00e8se [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":127,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[8],"tags":[],"class_list":["post-126","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-concepts"],"jetpack_featured_media_url":"https:\/\/kordee.fr\/wp-content\/uploads\/2024\/09\/limitesplanetaires.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/kordee.fr\/index.php\/wp-json\/wp\/v2\/posts\/126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kordee.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kordee.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kordee.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kordee.fr\/index.php\/wp-json\/wp\/v2\/comments?post=126"}],"version-history":[{"count":2,"href":"https:\/\/kordee.fr\/index.php\/wp-json\/wp\/v2\/posts\/126\/revisions"}],"predecessor-version":[{"id":129,"href":"https:\/\/kordee.fr\/index.php\/wp-json\/wp\/v2\/posts\/126\/revisions\/129"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kordee.fr\/index.php\/wp-json\/wp\/v2\/media\/127"}],"wp:attachment":[{"href":"https:\/\/kordee.fr\/index.php\/wp-json\/wp\/v2\/media?parent=126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kordee.fr\/index.php\/wp-json\/wp\/v2\/categories?post=126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kordee.fr\/index.php\/wp-json\/wp\/v2\/tags?post=126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}