{"id":13882,"date":"2022-03-22T12:54:28","date_gmt":"2022-03-22T12:54:28","guid":{"rendered":"https:\/\/tahrir2day.com\/news\/2022\/03\/22\/le-changement-climatique-rend-les-etapes-plus-importantes\/"},"modified":"2022-03-22T12:54:28","modified_gmt":"2022-03-22T12:54:28","slug":"le-changement-climatique-rend-les-etapes-plus-importantes","status":"publish","type":"post","link":"https:\/\/tahrir2day.com\/news\/2022\/03\/22\/le-changement-climatique-rend-les-etapes-plus-importantes\/","title":{"rendered":"Le changement climatique rend les \u00e9tapes plus importantes"},"content":{"rendered":"
\n

Gr\u00eale de la taille d’une balle de golf. Ce ph\u00e9nom\u00e8ne pourrait \u00eatre de plus en plus courant, en raison du r\u00e9chauffement climatique. C’est ce que r\u00e9v\u00e8le une enqu\u00eate de la BBC publi\u00e9e le 15 mars 2022.<\/p>\n

Au Texas, au Colorado et en Alabama, des records ont \u00e9t\u00e9 battus ces trois derni\u00e8res ann\u00e9es avec des gla\u00e7ons jusqu’\u00e0 6 pouces de diam\u00e8tre.<\/p>\n

Air plus humide en partie responsable<\/h2>\n

La gr\u00eale se forme lorsque des gouttelettes d’eau sont transport\u00e9es par des surtensions dans l’atmosph\u00e8re, o\u00f9 l’air est suffisamment froid pour geler les gouttelettes. Le taux de croissance d’un rocher d\u00e9pend de la quantit\u00e9 d’humidit\u00e9 dans l’air. L’air m\u00e9t\u00e9orologique et les inondations plus fortes apportent de plus gros rochers. Et comme le changement climatique change la temp\u00e9rature de l’atmosph\u00e8re terrestre, il en va de m\u00eame pour la quantit\u00e9 d’humidit\u00e9 dans l’air.<\/p>\n

Ainsi, les travaux du physicien Julian Brimelow (Environnement et Changement climatique Canada) montrent qu’un air plus chaud peut contenir plus de vapeur d’eau, et que des temp\u00e9ratures plus \u00e9lev\u00e9es signifient \u00e9galement que plus d’eau s’\u00e9vapore de la surface de la terre. Une situation qui entra\u00eene des pr\u00e9cipitations plus abondantes et des temp\u00eates plus extr\u00eames dans diff\u00e9rentes parties du monde.<\/p>\n

\u22d9 Des ballons charg\u00e9s de sel contre la gr\u00eale, l’ennemi num\u00e9ro 1 des vignes<\/p>\n

Les temp\u00eates de gr\u00eale devraient diminuer en Asie de l’Est et en Am\u00e9rique du Nord<\/h2>\n

Alors que les rochers g\u00e9ants – d’un diam\u00e8tre de plus de 10 cm – sont extr\u00eamement rares, ils sont un indicateur important du changement climatique. Une combinaison d’observations des changements d\u00e9j\u00e0 en cours et de mod\u00e9lisation climatique a conduit ces chercheurs canadiens \u00e0 conclure que les temp\u00eates de gr\u00eale deviennent plus fr\u00e9quentes en Australie et en Europe, tout en diminuant en Asie de l’Est et en Am\u00e9rique du Sud.<\/p>\n

Les experts ont \u00e9galement observ\u00e9 que ces pav\u00e9s deviennent globalement plus intenses, avec des pav\u00e9s plus gros. \u00c0 des temp\u00e9ratures plus chaudes, de petits rochers pourront fondre et se transformer en pluie, \u00e0 l’inverse, des rochers plus gros et plus lourds tomberont trop rapidement pour fondre avec le temps. Un ph\u00e9nom\u00e8ne qui s’observe d\u00e9j\u00e0 en France, indique Julian Brimelow, cit\u00e9 par la BBC. “Nous avons observ\u00e9 moins de jours avec des rochers l\u00e9gers, mais plus avec de gros rochers.”<\/p>\n

La plus grosse boutonni\u00e8re a \u00e9t\u00e9 enregistr\u00e9e au Bangladesh en 1986. Elle pesait plus d’un kilogramme. En 2020, Tripoli (Libye) a \u00e9t\u00e9 touch\u00e9e par des blocs de pr\u00e8s de 18 cm. Selon les chercheurs, la taille maximale pourrait atteindre 27 cm de diam\u00e8tre, soit environ la taille d’une boule de bowling. Assez pour faire des d\u00e9g\u00e2ts importants.<\/p>\n

A lire aussi :<\/strong><\/p>\n

<\/picture>\n
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R\u00e9chauffement climatique : ce qu’il faut retenir du dernier rapport du GIEC<\/p>\n<\/p><\/div>\n<\/p><\/div>\n

<\/picture>\n
\n

Les poissons de l’Antarctique grandissent peu, voici pourquoi<\/p>\n<\/p><\/div>\n<\/p><\/div>\n

<\/picture>\n
\n

Patrimoine : 25 sites menac\u00e9s par le changement climatique ou le tourisme dans le monde<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Gr\u00eale de la taille d’une balle de golf. Ce ph\u00e9nom\u00e8ne pourrait \u00eatre de plus en plus courant, en raison du r\u00e9chauffement climatique. C’est ce que r\u00e9v\u00e8le une enqu\u00eate de la BBC publi\u00e9e le 15 mars 2022. Au Texas, au Colorado et en Alabama, des records ont \u00e9t\u00e9 battus ces trois derni\u00e8res ann\u00e9es avec des gla\u00e7ons […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"footnotes":""},"categories":[59],"tags":[],"class_list":["post-13882","post","type-post","status-publish","format-standard","hentry","category-europe"],"yoast_head":"\nLe changement climatique rend les \u00e9tapes plus importantes - Tahrir News<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tahrir2day.com\/news\/2022\/03\/22\/le-changement-climatique-rend-les-etapes-plus-importantes\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le changement climatique rend les \u00e9tapes plus importantes\" \/>\n<meta property=\"og:description\" content=\"Gr\u00eale de la taille d’une balle de golf. Ce ph\u00e9nom\u00e8ne pourrait \u00eatre de plus en plus courant, en raison du r\u00e9chauffement climatique. C’est ce que r\u00e9v\u00e8le une enqu\u00eate de la BBC publi\u00e9e le 15 mars 2022. 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