{"id":11391,"date":"2021-10-06T13:39:59","date_gmt":"2021-10-06T13:39:59","guid":{"rendered":"https:\/\/climate-wise.com\/changement-climatique-une-chronologie\/"},"modified":"2021-10-06T13:39:59","modified_gmt":"2021-10-06T13:39:59","slug":"changement-climatique-une-chronologie","status":"publish","type":"post","link":"https:\/\/climate-wise.com\/fr\/changement-climatique-une-chronologie\/","title":{"rendered":"Changement climatique : Une chronologie"},"content":{"rendered":"<p>Le climat a toujours chang\u00e9, mais dans l&rsquo;histoire de la civilisation humaine, les changements que nous connaissons actuellement sont particuli\u00e8rement alarmants. Principalement parce que le climat n&rsquo;a jamais chang\u00e9 aussi rapidement. Nous pr\u00e9sentons ci-dessous une chronologie des \u00e9v\u00e9nements qui mettent en \u00e9vidence les principaux changements climatiques et les actions qui en ont r\u00e9sult\u00e9.<\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-10643 alignright\" src=\"https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/pawel-czerwinski-LDi9F6oGojQ-unsplash-300x200.jpg\" alt=\"\" width=\"300\" height=\"200\" srcset=\"https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/pawel-czerwinski-LDi9F6oGojQ-unsplash-300x200.jpg 300w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/pawel-czerwinski-LDi9F6oGojQ-unsplash-1024x684.jpg 1024w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/pawel-czerwinski-LDi9F6oGojQ-unsplash-768x513.jpg 768w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/pawel-czerwinski-LDi9F6oGojQ-unsplash-1536x1026.jpg 1536w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/pawel-czerwinski-LDi9F6oGojQ-unsplash-1568x1048.jpg 1568w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/pawel-czerwinski-LDi9F6oGojQ-unsplash-600x401.jpg 600w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/pawel-czerwinski-LDi9F6oGojQ-unsplash.jpg 1919w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>1800s<\/strong><br \/>\n1824 &#8211; Joseph Fourier, math\u00e9maticien et physicien fran\u00e7ais, a baptis\u00e9 l&rsquo;effet de serre naturel de la Terre en raison de sa similitude avec la mani\u00e8re dont une serre retient la chaleur en absorbant le rayonnement infrarouge et en \u00e9mettant une partie dans la serre pour maintenir la temp\u00e9rature.<\/p>\n<p>1896 &#8211; Svante Arrhenius, un scientifique su\u00e9dois, constate que la combustion du charbon \u00e0 l&rsquo;\u00e8re industrielle renforce l&rsquo;effet de serre naturel. Il a conclu que de tels \u00e9v\u00e9nements pourraient doubler le<sub>CO2<\/sub> atmosph\u00e9rique et provoquer une augmentation de la temp\u00e9rature.<\/p>\n<p><strong>1900s<\/strong><br \/>\n1938 &#8211; L'\u00a0\u00bbeffet Callendar\u00a0\u00bb a \u00e9t\u00e9 identifi\u00e9 par Guy Callendar, qui a d\u00e9montr\u00e9 que les temp\u00e9ratures avaient augment\u00e9 au cours du si\u00e8cle pr\u00e9c\u00e9dent en utilisant les relev\u00e9s de 147 stations m\u00e9t\u00e9orologiques du monde entier. Il \u00e9tablit un lien entre l&rsquo;augmentation des concentrations de<sub>CO2<\/sub> et l&rsquo;augmentation du r\u00e9chauffement constat\u00e9.<\/p>\n<p>1955 &#8211; Gilbert Plass, physicien canadien, d\u00e9termine que le doublement des concentrations de<sub>CO2<\/sub> augmenterait les temp\u00e9ratures de 3 \u00e0 4 degr\u00e9s Celsius en analysant l&rsquo;absorption infrarouge de diff\u00e9rents gaz.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-medium wp-image-10648\" src=\"https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/daniel-gregoire-0XUuh7gEHuo-unsplash-300x169.jpg\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/daniel-gregoire-0XUuh7gEHuo-unsplash-300x169.jpg 300w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/daniel-gregoire-0XUuh7gEHuo-unsplash-1024x575.jpg 1024w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/daniel-gregoire-0XUuh7gEHuo-unsplash-768x431.jpg 768w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/daniel-gregoire-0XUuh7gEHuo-unsplash-1536x863.jpg 1536w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/daniel-gregoire-0XUuh7gEHuo-unsplash-1568x881.jpg 1568w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/daniel-gregoire-0XUuh7gEHuo-unsplash-600x337.jpg 600w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/daniel-gregoire-0XUuh7gEHuo-unsplash.jpg 1921w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>1958 &#8211; David Keeling, un scientifique am\u00e9ricain, commence \u00e0 enregistrer des donn\u00e9es sur le<sub>CO2 dans <\/sub>l&rsquo;atmosph\u00e8re \u00e0 Mauna Loa. En quatre ans de suivi, le projet a fourni la premi\u00e8re preuve indiscutable que les concentrations de<sub>CO2<\/sub> augmentent.<\/p>\n<p>1972 &#8211; Premi\u00e8re conf\u00e9rence des Nations unies sur l&rsquo;environnement, \u00e0 Stockholm, au cours de laquelle le Programme des Nations unies pour l&rsquo;environnement (PNUE) a \u00e9t\u00e9 cr\u00e9\u00e9. Toutefois, l&rsquo;accent \u00e9tait mis sur des questions telles que la pollution chimique, les essais de bombes atomiques et la chasse \u00e0 la baleine, plut\u00f4t que sur le changement climatique.<\/p>\n<p>1987 &#8211; Adoption du protocole de Montr\u00e9al qui restreint les produits chimiques qui endommagent la couche d&rsquo;ozone. Bien qu&rsquo;il n&rsquo;ait pas \u00e9t\u00e9 cr\u00e9\u00e9 dans l&rsquo;optique du changement climatique, son impact sur les \u00e9missions de gaz \u00e0 effet de serre a \u00e9t\u00e9 plus important que celui du futur protocole de Kyoto.<\/p>\n<p>1988 &#8211; Le Groupe d&rsquo;experts intergouvernemental sur l&rsquo;\u00e9volution du climat (GIEC) a \u00e9t\u00e9 cr\u00e9\u00e9 sous l&rsquo;\u00e9gide du PNUE afin de rassembler et d&rsquo;\u00e9valuer les donn\u00e9es relatives au changement climatique.<\/p>\n<p>1989 &#8211; Dans un discours prononc\u00e9 devant les Nations unies, le Premier ministre britannique Margaret Thatcher avertit que le dioxyde de carbone pr\u00e9sent dans l&rsquo;atmosph\u00e8re augmente \u00e0 un rythme alarmant et risque d&rsquo;entra\u00eener de graves changements \u00e0 l&rsquo;avenir.<\/p>\n<p>1990 &#8211; Premier rapport d&rsquo;\u00e9valuation du GIEC. Elle a conclu que les temp\u00e9ratures mondiales ont augment\u00e9 de 0,3 \u00e0 0,6 \u00b0C au cours du si\u00e8cle dernier et que les \u00e9missions de l&rsquo;humanit\u00e9 s&rsquo;ajoutent au compl\u00e9ment naturel de gaz \u00e0 effet de serre dans l&rsquo;atmosph\u00e8re, ce qui devrait entra\u00eener un r\u00e9chauffement.<\/p>\n<p>1992 &#8211; Le Sommet de la Terre a eu lieu \u00e0 Rio de Janeiro, au cours duquel les gouvernements ont adopt\u00e9 la Convention-cadre des Nations unies sur les changements climatiques. Son principal objectif est de \u00ab\u00a0stabiliser les concentrations de gaz \u00e0 effet de serre dans l&rsquo;atmosph\u00e8re \u00e0 un niveau qui emp\u00eache toute perturbation anthropique dangereuse du syst\u00e8me climatique\u00a0\u00bb. Lors du sommet, les pays d\u00e9velopp\u00e9s ont accept\u00e9 de ramener leurs \u00e9missions aux niveaux de 1990.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-10652 alignright\" src=\"https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/matthew-tenbruggencate-0HJWobhGhJs-unsplash-300x200.jpg\" alt=\"\" width=\"300\" height=\"200\" srcset=\"https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/matthew-tenbruggencate-0HJWobhGhJs-unsplash-300x200.jpg 300w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/matthew-tenbruggencate-0HJWobhGhJs-unsplash-1024x682.jpg 1024w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/matthew-tenbruggencate-0HJWobhGhJs-unsplash-768x512.jpg 768w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/matthew-tenbruggencate-0HJWobhGhJs-unsplash-1536x1023.jpg 1536w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/matthew-tenbruggencate-0HJWobhGhJs-unsplash-1568x1045.jpg 1568w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/matthew-tenbruggencate-0HJWobhGhJs-unsplash-600x400.jpg 600w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/matthew-tenbruggencate-0HJWobhGhJs-unsplash.jpg 1921w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>1995 &#8211; Deuxi\u00e8me rapport d&rsquo;\u00e9valuation du GIEC. Elle a conclu que l&rsquo;ensemble des preuves sugg\u00e8re \u00ab\u00a0une influence humaine perceptible\u00a0\u00bb sur le climat de la Terre, ce qui constitue sans doute la premi\u00e8re d\u00e9claration d\u00e9finitive rendant l&rsquo;homme responsable du changement climatique.<\/p>\n<p>1997 &#8211; Le protocole de Kyoto a \u00e9t\u00e9 adopt\u00e9. Dans ce cadre, les pays d\u00e9velopp\u00e9s s&rsquo;engagent \u00e0 r\u00e9duire leurs \u00e9missions de 5 % en moyenne d&rsquo;ici 2008-2012, avec des objectifs tr\u00e8s variables d&rsquo;un pays \u00e0 l&rsquo;autre.<strong> <\/strong><\/p>\n<p><strong>2000s<\/strong><br \/>\n2001 &#8211; Troisi\u00e8me rapport d&rsquo;\u00e9valuation du GIEC. Elle a d\u00e9clar\u00e9 avoir trouv\u00e9 \u00ab\u00a0des preuves nouvelles et plus solides\u00a0\u00bb que les \u00e9missions de gaz \u00e0 effet de serre de l&rsquo;humanit\u00e9 sont la principale cause du r\u00e9chauffement observ\u00e9 au cours de la seconde moiti\u00e9 du 20e si\u00e8cle.<\/p>\n<p>2006 &#8211; L&rsquo;\u00e9conomiste Nicholas Stern publie le rapport Stern, qui conclut que le changement climatique pourrait affecter le PIB mondial \u00e0 hauteur de 20 % si aucune mesure n&rsquo;est prise. Toutefois, l&rsquo;enrayer co\u00fbterait environ 1 % du PIB mondial.<\/p>\n<p>2007 &#8211; Quatri\u00e8me rapport d&rsquo;\u00e9valuation du GIEC. Elle a conclu qu&rsquo;il est probable \u00e0 plus de 90 % que les \u00e9missions de gaz \u00e0 effet de serre de l&rsquo;humanit\u00e9 soient responsables du changement climatique actuel.<\/p>\n<p>2009 &#8211; Sommet de l&rsquo;ONU sur le climat \u00e0 Copenhague, o\u00f9 192 gouvernements se sont r\u00e9unis dans l&rsquo;espoir d&rsquo;un nouvel accord mondial. Cependant, ils ne sont repartis qu&rsquo;avec une d\u00e9claration politique controvers\u00e9e, l&rsquo;accord de Copenhague.<\/p>\n<p>2010 &#8211; Les pays d\u00e9velopp\u00e9s signent un accord triennal sur le \u00ab\u00a0Fast Start Finance\u00a0\u00bb, dans le cadre duquel ils versent 30 milliards de dollars pour les aider \u00e0 \u00ab\u00a0verdir\u00a0\u00bb leurs \u00e9conomies et \u00e0 s&rsquo;adapter aux effets du changement climatique.<\/p>\n<p>2012 &#8211; Depuis le d\u00e9but des mesures par satellite en 1979, la glace de mer arctique a atteint une \u00e9tendue minimale de 3,41 millions de km\u00b2 (1,32 million de mi\u00b2), ce qui constitue un record pour la couverture estivale la plus faible.<\/p>\n<p>2013 &#8211; L&rsquo;observatoire de Mauna Loa, cr\u00e9\u00e9 par David Keeling, signale que la concentration moyenne journali\u00e8re de<sub>CO2<\/sub> dans l&rsquo;atmosph\u00e8re a d\u00e9pass\u00e9 les 400 parties par million (ppm) pour la premi\u00e8re fois depuis le d\u00e9but des mesures en 1958.<\/p>\n<p>2013 &#8211; Cinqui\u00e8me rapport d&rsquo;\u00e9valuation du GIEC. Elle indique que les scientifiques sont certains \u00e0 95 % que l&rsquo;homme est la \u00ab\u00a0cause dominante\u00a0\u00bb du r\u00e9chauffement climatique depuis les ann\u00e9es 1950.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-10656 alignright\" src=\"https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/roxanne-desgagnes-qbtyUQtqJ8k-unsplash-2-300x200.jpg\" alt=\"\" width=\"300\" height=\"200\" srcset=\"https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/roxanne-desgagnes-qbtyUQtqJ8k-unsplash-2-300x200.jpg 300w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/roxanne-desgagnes-qbtyUQtqJ8k-unsplash-2-1024x682.jpg 1024w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/roxanne-desgagnes-qbtyUQtqJ8k-unsplash-2-768x512.jpg 768w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/roxanne-desgagnes-qbtyUQtqJ8k-unsplash-2-1536x1023.jpg 1536w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/roxanne-desgagnes-qbtyUQtqJ8k-unsplash-2-1568x1045.jpg 1568w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/roxanne-desgagnes-qbtyUQtqJ8k-unsplash-2-600x400.jpg 600w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/roxanne-desgagnes-qbtyUQtqJ8k-unsplash-2.jpg 1921w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>2015 &#8211; L&rsquo;effondrement de la calotte glaciaire de l&rsquo;Antarctique occidental pourrait \u00eatre irr\u00e9versible selon les chercheurs, entra\u00eenant une \u00e9l\u00e9vation du niveau de la mer de plusieurs m\u00e8tres au cours des si\u00e8cles \u00e0 venir. L&rsquo;accord de Paris a lieu et presque toutes les nations s&rsquo;engagent \u00e0 fixer leurs propres objectifs de r\u00e9duction des \u00e9missions de gaz \u00e0 effet de serre et \u00e0 rendre compte de leurs progr\u00e8s.<\/p>\n<p>2019 &#8211; Les nouvelles de catastrophes naturelles et l&rsquo;intensification des alertes scientifiques continuent de susciter l&rsquo;inqui\u00e9tude, en particulier chez les jeunes, et provoquent des manifestations publiques.<\/p>\n<p>2020 &#8211; 2020 est l&rsquo;ann\u00e9e la plus chaude jamais enregistr\u00e9e, selon des donn\u00e9es provenant de diff\u00e9rentes sources, dont la NASA. Malgr\u00e9 la pand\u00e9mie, les neuf premiers mois de l&rsquo;ann\u00e9e ont \u00e9t\u00e9 marqu\u00e9s par des concentrations record des principaux gaz \u00e0 effet de serre tels que le<sub>CO2<\/sub>, le m\u00e9thane et l&rsquo;oxyde nitreux. L&rsquo;\u00e9tendue de la glace de mer arctique a \u00e9galement atteint des niveaux historiquement bas pendant une grande partie de l&rsquo;\u00e9t\u00e9.<\/p>\n<p>2021 &#8211; Sixi\u00e8me rapport d&rsquo;\u00e9valuation produit par le GIEC. Il conclut que \u00ab\u00a0les preuves scientifiques du r\u00e9chauffement du syst\u00e8me climatique sont sans \u00e9quivoque\u00a0\u00bb. Les effets du changement climatique s&rsquo;intensifient sous la forme d&rsquo;\u00e9v\u00e9nements m\u00e9t\u00e9orologiques extr\u00eames, de hausse des temp\u00e9ratures, de r\u00e9chauffement des oc\u00e9ans, de recul des glaciers et de r\u00e9duction de la couverture neigeuse. Il nous reste moins de dix ans pour d\u00e9tourner une rupture climatique compl\u00e8te.<strong> <\/strong><\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-medium wp-image-10660\" src=\"https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/mika-baumeister-ctUIyfOyWsE-unsplash-300x200.jpg\" alt=\"\" width=\"300\" height=\"200\" srcset=\"https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/mika-baumeister-ctUIyfOyWsE-unsplash-300x200.jpg 300w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/mika-baumeister-ctUIyfOyWsE-unsplash-1024x682.jpg 1024w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/mika-baumeister-ctUIyfOyWsE-unsplash-768x512.jpg 768w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/mika-baumeister-ctUIyfOyWsE-unsplash-1536x1023.jpg 1536w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/mika-baumeister-ctUIyfOyWsE-unsplash-1568x1045.jpg 1568w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/mika-baumeister-ctUIyfOyWsE-unsplash-600x400.jpg 600w, https:\/\/climate-wise.com\/wp-content\/uploads\/2021\/10\/mika-baumeister-ctUIyfOyWsE-unsplash.jpg 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>Quelle est la prochaine \u00e9tape ?  <\/strong><br \/>\nComme on l&rsquo;a vu, nous savons depuis plusieurs d\u00e9cennies que la Terre r\u00e9agirait n\u00e9gativement \u00e0 l&rsquo;augmentation des concentrations de<sub>CO2<\/sub>, mais aucune mesure importante n&rsquo;a \u00e9t\u00e9 prise. Les pays doivent se fixer des objectifs plus stricts pour limiter le r\u00e9chauffement de la plan\u00e8te \u00e0 1,5 degr\u00e9 Celsius. Nous devons \u00e9galement faire tout ce qui est en notre pouvoir pour r\u00e9duire cette augmentation imminente de la temp\u00e9rature. Chaque action, aussi petite soit-elle, fait la diff\u00e9rence. La compensation de vos \u00e9missions de carbone est la premi\u00e8re \u00e9tape pour vous engager dans l&rsquo;action climatique.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le climat a toujours chang\u00e9, mais dans l&rsquo;histoire de la civilisation humaine, les changements que nous connaissons actuellement sont particuli\u00e8rement alarmants. Principalement parce que le climat n&rsquo;a jamais chang\u00e9 aussi rapidement. Nous pr\u00e9sentons ci-dessous une chronologie des \u00e9v\u00e9nements qui mettent en \u00e9vidence les principaux changements climatiques et les actions qui en ont r\u00e9sult\u00e9. 1800s 1824&hellip; <a class=\"more-link\" href=\"https:\/\/climate-wise.com\/fr\/changement-climatique-une-chronologie\/\">Poursuivre la lecture <span class=\"screen-reader-text\">Changement climatique : Une chronologie<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":8886,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[220],"tags":[],"class_list":["post-11391","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouvelles-et-articles-fr","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Changement climatique : Une chronologie - Climate Wise<\/title>\n<meta name=\"description\" content=\"Le climat a toujours chang\u00e9, mais dans l&#039;histoire de la civilisation humaine, les changements que nous connaissons actuellement sont particuli\u00e8rement\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/climate-wise.com\/climate-change-a-timeline-2\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Changement climatique : Une chronologie - 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