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{"id":2341,"date":"2012-05-03T20:08:54","date_gmt":"2012-05-03T18:08:54","guid":{"rendered":"https:\/\/energethique.be\/?p=2341"},"modified":"2012-05-03T20:08:54","modified_gmt":"2012-05-03T18:08:54","slug":"changement-climatique-que-predisent-les-modeles-pour-leurope","status":"publish","type":"post","link":"https:\/\/energethique.be\/2012\/changement-climatique-que-predisent-les-modeles-pour-leurope\/","title":{"rendered":"Changement climatique: Que pr\u00e9disent les mod\u00e8les pour l’Europe ?"},"content":{"rendered":"

On se sent toujours plus concern\u00e9 et investi quand quelque chose nous touche de pr\u00e8s, alors quelles seront les cons\u00e9quences du changement climatique dans nos contr\u00e9es ?
\nAujourd’hui parler de r\u00e9chauffement pr\u00eaterait plut\u00f4t \u00e0 sourire, il suffit en effet de jeter un coup d’oeil par la fen\u00eatre ou de voir les pr\u00e9visions alarmistes pour le mois de mai en Angleterre.<\/p>\n

Quoiqu’il en soit les projections indiquent que l’Europe devrait conna\u00eetre un r\u00e9chauffement global de l’ordre de 1,5\u00b0C dans la p\u00e9riode 2021-2050 compar\u00e9 \u00e0 la p\u00e9riode 1960-1990.
\nLe r\u00e9chauffement les plus marqu\u00e9 devrait \u00eatre rencontr\u00e9 \u00e0 l’est de la Scandinavie ainsi que dans le sud et le sud est de l’Europe.
\nTout le continent devrait conna\u00eetre une augmentation comprise approximativement entre 0,4\u00b0C et 2,5\u00b0C.<\/p>\n

\"\"<\/a>

Source : EYEonEarth<\/p><\/div>
\nVoir une carte plus grande sur EYEonEARTH<\/a><\/p>\n

Si on projette un peu plus loin pour la p\u00e9riode 2071-2100 les mod\u00e8les pr\u00e9disent une augmentation moyenne de l’ordre de 3\u00b0C en Europe avec une pointe \u00e0 6\u00b0C pour l’est de la Scandinavie ; le bassin m\u00e9diterran\u00e9en devrait lui aussi souffrir plus que le restant de l’Europe.
\nCe qui est remarquable ce sont surtout les diff\u00e9rences que l’on observera entre les \u00e9t\u00e9s et les hivers.
\nLes changements seront ainsi plus important en hiver en Scandinavie alors que le bassin m\u00e9diterran\u00e9en sera plus impact\u00e9 en \u00e9t\u00e9.
\nOn ne parle ici que de quelques degr\u00e9s mais derri\u00e8re cette petite fluctuation se cache une temp\u00e9rature moyenne annuelle masquant par ce fait les extr\u00eames.
\nEnfin qui dit augmentation de temp\u00e9rature sous entend aussi vagues de chaleur, s\u00e8cheresses qui vont avoir un impact important sur l’approvisionnement en eau, la production agricole et la sant\u00e9 humaine.<\/p>\n

\"\"<\/a><\/p>\n

Les projections indiquent une fracture entre augmentation et diminution des pr\u00e9cipitations sur l’Europe.
\nLes moyennes annuelles indiquent une augmentation des pr\u00e9cipitations dans les r\u00e9gions du nord alors que le sud de l’Europe devrait conna\u00eetre un d\u00e9ficit pluviom\u00e9trique.
\nDe plus les \u00e9carts entre saison seraient aussi plus marqu\u00e9s avec des hivers tr\u00e8s humides, m\u00eame pour l’Afrique du nord qui pourrait voir la pluviom\u00e9trie augmenter de 30%, et des \u00e9t\u00e9s tr\u00e8s secs ; ces deux tendances s’accroissent encore pour les projections 2071-2100.<\/p>\n

Mais finalement qu’est ce que cela signifie ? Quels en sont les conclusions \u00e0 tirer ?<\/p>\n

L’augmentation des pr\u00e9cipitations dans le nord m\u00e8nera in\u00e9vitablement \u00e0 des augmentations des inondations alors que le sud devra affronter des s\u00e9cheresses plus longues et plus fr\u00e9quentes, ceci aura des r\u00e9percussions in\u00e9vitables sur l’agriculture, le tourisme et l’industrie.
\nAujourd’hui d\u00e9j\u00e0 l’agriculture est tr\u00e8s consommatrice d’eau dans le bassin m\u00e9diterran\u00e9en avec une consommation de pr\u00e8s de 80% de l’eau utilis\u00e9e.
\nLa carte montre clairement que beaucoup de pays devront adapter leur mod\u00e8le agricole pour s\u2019accommoder des caprices du climat.<\/p>\n

Ces pr\u00e9dictions sont issues de donn\u00e9es tir\u00e9es de 25 mod\u00e8les r\u00e9gionaux diff\u00e9rents, supposant une croissance \u00e9conomique rapide, une population globale de 9 mds en 2050 ensuite d\u00e9croissante.
\nLes revenus et mode de vie des diff\u00e9rentes r\u00e9gions ont \u00e9galement \u00e9t\u00e9 pris en compte ainsi que l’utilisation de nouvelle technologie plus efficace, l’\u00e9nergie \u00e9tant suppos\u00e9e venir d’un mix de fossile et renouvelable.<\/p>\n

Il est important de garder en m\u00e9moire que ceci n’est qu’un sc\u00e9nario donc que sa r\u00e9alisation n’est pas certaine enfin si nous r\u00e9duisons rapidement nos \u00e9missions de CO2, en utilisant moins de ressources non renouvelable et en utilisant des technologies moins gourmandes, nous pourrions ralentir ces effets ce qui infirmerait les pr\u00e9dictions pr\u00e9suppos\u00e9es.<\/p>\n

Mais pour cela nous devrons nous adapter et donc changer drastiquement notre mode de vie actuel.<\/p>\n","protected":false},"excerpt":{"rendered":"

On se sent toujours plus concern\u00e9 et investi quand quelque chose nous touche de pr\u00e8s, alors quelles seront les cons\u00e9quences du changement climatique dans nos contr\u00e9es ?
\nAujourd’hui parler de r\u00e9chauffement pr\u00eaterait plut\u00f4t \u00e0 sourire, il suffit en effet de jeter un coup d’oeil par la fen\u00eatre ou de voir les pr\u00e9visions alarmistes pour le mois de mai en Angleterre.<\/p>\n

Quoiqu’il en soit les projections indiquent que l’Europe devrait conna\u00eetre un r\u00e9chauffement global de l’ordre de 1,5\u00b0C dans la p\u00e9riode 2021-2050 compar\u00e9 […]<\/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":[9],"tags":[],"jetpack_featured_media_url":"","jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/pBGwz-BL","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/posts\/2341"}],"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=2341"}],"version-history":[{"count":0,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/posts\/2341\/revisions"}],"wp:attachment":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/media?parent=2341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/categories?post=2341"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/tags?post=2341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}