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{"id":1531,"date":"2010-09-23T06:48:10","date_gmt":"2010-09-23T04:48:10","guid":{"rendered":"https:\/\/energethique.be\/?p=1531"},"modified":"2010-09-22T19:25:23","modified_gmt":"2010-09-22T17:25:23","slug":"piege-a-co2-un-autre-heritage-pour-les-generations-futures","status":"publish","type":"post","link":"https:\/\/energethique.be\/2010\/piege-a-co2-un-autre-heritage-pour-les-generations-futures\/","title":{"rendered":"Pi\u00e8ge \u00e0 CO2 un autre h\u00e9ritage pour les g\u00e9n\u00e9rations futures"},"content":{"rendered":"

Comme nous en avions d\u00e9j\u00e0 touch\u00e9 un mot sur le blog (ICI<\/a>) devant le probl\u00e8me d’accroissement des concentrations en CO2 atmosph\u00e9rique certains se tournent vers la s\u00e9questration.<\/p>\n

A priori c’est une bonne id\u00e9e qui nous permettrait de gagner quelques pr\u00e9cieuses ann\u00e9es de recherche dans le d\u00e9veloppement d’\u00e9nergie \u00ab\u00a0propre\u00a0\u00bb ou \u00e0 tout le moins plus respectueuse de l’environnement, mais ne nous leurrons pas ce n’est pas non plus la panac\u00e9e ; ainsi \u00e0 l’instar des d\u00e9chets nucl\u00e9aires c’est un pesant h\u00e9ritage que nous laissons \u00e0 nos enfants et avec lequel ils devront composer.<\/p>\n

De plus la crainte est de voir les lobbys s’activer pour museler les d\u00e9cisions qu’il nous faudra immanquablement prendre pour p\u00e9renniser notre environnement et sa diversit\u00e9.<\/p>\n

Il serait tellement simple et suicidaire de se dire que puisque nous avons pu limiter les risques de d\u00e9r\u00e8glement \u00a0climatique grave que nous pouvons continuer \u00e0 consommer comme avant.<\/p>\n

Mais quelles sont les possibilit\u00e9s qui s’offrent \u00e0 nous pour pi\u00e9ger le CO2 aujourd’hui ?<\/p>\n

\"\"<\/p>\n

1. Activer d’une mani\u00e8re ou d’une autre les puits actuels et plus particuli\u00e8rement les puits oc\u00e9aniques.<\/p>\n

Ceci n’est pas sans probl\u00e8me car on constate une augmentation du pH (acidification) qui induit automatiquement une diminution des capacit\u00e9s de ces m\u00eames puits.<\/p>\n

De plus la faune et la flore ne sont pas insensibles \u00e0 cette acidification et le risque de voir s’appauvrir la biodiversit\u00e9 marine n’est pas n\u00e9gligeable.<\/p>\n

Enfin ces puits ne sont pas garantis et le relargage du gaz ainsi emprisonn\u00e9 est assez rapide ne reportant que de peu le probl\u00e8me.<\/p>\n

2\u00b0 Le stockage g\u00e9ologique<\/p>\n

Cette solution semble actuellement la plus coh\u00e9rente puisque l’on vise ici \u00e0 replacer le carbone dans son lieu d’origine (puits de charbon, gaz ou p\u00e9trole), bien entendu pour que ce pi\u00e9geage soit int\u00e9ressant il faut que les fuites, in\u00e9luctables, restent inf\u00e9rieures \u00e0 1% tous les 1000 ans.<\/p>\n

En effet il faudra \u00e0 l’avenir prendre en compte des fuites des r\u00e9servoirs oc\u00e9aniques (dissolution du CO2 dans l’eau r\u00e9pondant \u00e0 un \u00e9quilibre d\u00e9licat) et g\u00e9ologique qu’il faudra re-s\u00e9questrer.<\/p>\n

Cette re-s\u00e9questration devrait alors se faire sur des milliers d’ann\u00e9es ce qui serait un autre h\u00e9ritage que nous laisserons \u00e0 nos enfants…<\/p>\n

En conclusion le pi\u00e9geage est une solution mais ne devrait pas \u00eatre utilis\u00e9 pour que nous \u00e9ludions notre probl\u00e8me actuel de boulimie \u00e9nerg\u00e9tique bien au contraire nous devons rapidement faire face \u00e0 nos responsabilit\u00e9s afin que le fardeau que nous laissons \u00e0 nos h\u00e9ritiers ne soit pas trop pesant.<\/p>\n","protected":false},"excerpt":{"rendered":"

Comme nous en avions d\u00e9j\u00e0 touch\u00e9 un mot sur le blog (ICI<\/a>) devant le probl\u00e8me d’accroissement des concentrations en CO2 atmosph\u00e9rique certains se tournent vers la s\u00e9questration.<\/p>\n

A priori c’est une bonne id\u00e9e qui nous permettrait de gagner quelques pr\u00e9cieuses ann\u00e9es de recherche dans le d\u00e9veloppement d’\u00e9nergie \u00ab\u00a0propre\u00a0\u00bb ou \u00e0 tout le moins plus respectueuse de l’environnement, mais ne nous leurrons pas ce n’est pas non plus la panac\u00e9e ; ainsi \u00e0 l’instar des d\u00e9chets nucl\u00e9aires c’est un pesant […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[1],"tags":[],"jetpack_featured_media_url":"","jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/pBGwz-oH","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/posts\/1531"}],"collection":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/comments?post=1531"}],"version-history":[{"count":0,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/posts\/1531\/revisions"}],"wp:attachment":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/media?parent=1531"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/categories?post=1531"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/tags?post=1531"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}