{"id":7087,"date":"2022-02-03T08:59:37","date_gmt":"2022-02-03T07:59:37","guid":{"rendered":"https:\/\/agora.xtec.cat\/iessitges\/?p=7087"},"modified":"2022-02-02T09:06:44","modified_gmt":"2022-02-02T08:06:44","slug":"el-canvi-climatic-i-lescalfament-global-han-arribat-a-afectar-a-sitges","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/iessitges\/revista\/el-canvi-climatic-i-lescalfament-global-han-arribat-a-afectar-a-sitges\/","title":{"rendered":"El canvi clim\u00e0tic i l\u2019escalfament global han arribat a afectar a Sitges?"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">L&#8217;escalfament global \u00e9s la temperatura de la superf\u00edcie de la Terra, mentre que el canvi clim\u00e0tic inclou l&#8217;escalfament i els efectes secundaris d&#8217;aquest escalfament. Dit d&#8217;una altra manera, l&#8217;escalfament global \u00e9s un s\u00edmptoma del major problema del canvi clim\u00e0tic causat pels \u00e9ssers humans.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Quan els cient\u00edfics o l\u00edders p\u00fablics parlen sobre l&#8217;escalfament global, gaireb\u00e9 sempre es refereixen a l&#8217;escalfament causat pels humans, un escalfament degut al r\u00e0pid augment del di\u00f2xid de carboni i altres gasos d&#8217;efecte hivernacle.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">El canvi clim\u00e0tic, d&#8217;altra banda, pot significar canvis naturals o causats pels humans, com les edats de gel. A m\u00e9s de cremar combustibles f\u00f2ssils, els humans poden causar canvis clim\u00e0tics, transformar el paisatge de la Terra, per exemple, de boscos que emmagatzemen carboni a terres de cultiu.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">En les \u00faltimes cinc d\u00e8cades, els factors naturals (for\u00e7ament solar i volcans) en realitat hauran portat a un lleuger refredament en la temperatura de la superf\u00edcie de la Terra.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">La taxa d&#8217;augment de l&#8217;escalfament global tamb\u00e9 \u00e9s diferent a l&#8217;escalfament passat. L&#8217;augment actual de la temperatura mitjana mundial sembla estar ocorrent molt m\u00e9s r\u00e0pid que en qualsevol altre punt des que la civilitzaci\u00f3 i l&#8217;agricultura modernes es van desenvolupar en els \u00faltims 11.000 anys<\/span><\/p>\n<p><a href=\"https:\/\/agora.xtec.cat\/iessitges\/wp-content\/uploads\/usu1948\/2022\/02\/canvi-climatic-1-e1643789093192.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-7091\" src=\"https:\/\/agora.xtec.cat\/iessitges\/wp-content\/uploads\/usu1948\/2022\/02\/canvi-climatic-1-1024x683.png\" alt=\"\" width=\"1024\" height=\"683\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400;\">En d\u00e8cades posteriors, els cient\u00edfics es van fer m\u00e9s conscients que l&#8217;escalfament global, l&#8217;augment del nivell de la mar, la intensificaci\u00f3 del cicle de l&#8217;aigua eren impacte de l&#8217;exc\u00e9s de calor absorbit pels gasos d&#8217;efecte hivernacle.<\/span><\/p>\n<p><a href=\"https:\/\/agora.xtec.cat\/iessitges\/wp-content\/uploads\/usu1948\/2022\/02\/canvi-climatc-2-e1643789041562.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-7093\" src=\"https:\/\/agora.xtec.cat\/iessitges\/wp-content\/uploads\/usu1948\/2022\/02\/canvi-climatc-2-1024x648.png\" alt=\"\" width=\"1024\" height=\"648\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400;\">L&#8217;escalfament global actual \u00e9s un tipus de canvi clim\u00e0tic sense precedents, i est\u00e0 generant una cascada d&#8217;efectes secundaris en el nostre sistema clim\u00e0tic. S\u00f3n aquests efectes secundaris, com els canvis en el nivell de la mar al llarg de costes molt poblades i la retirada mundial de les glaceres de muntanya dels quals depenen milions de persones per a l&#8217;aigua potable i l&#8217;agricultura, que probablement tenen un impacte molt major en la societat que el canvi de temperatura.<\/span><\/p>\n<p><b>Com ha afectat el canvi clim\u00e0tic a Sitges:<br \/>\n<\/b><span style=\"font-weight: 400;\">Joandom\u00e8nec Ros, doctor en biologia i catedr\u00e0tic d\u2019ecologia va exposar les evid\u00e8ncies cient\u00edfiques del canvi clim\u00e0tic i com est\u00e0 afectant els ecosistemes marins i costaners. Va constatar que tamb\u00e9 comen\u00e7a a haver-hi evid\u00e8ncies d\u2019augment de temperatura en aig\u00fces costaneres d\u20191 \u00baC, en un sistema amb tanta in\u00e8rcia i tant tancat com el mar Mediterrani \u00e9s ja un valor important.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Els impactes generals que els cient\u00edfics preveuen van des de la reducci\u00f3 de la biomassa total, la simplificaci\u00f3 de les xarxes tr\u00f2fiques, l\u2019increment de la inestabilitat dels ecosistemes, la disminuci\u00f3 de la capacitat de recuperaci\u00f3 dels mateixos i la reducci\u00f3 de la producci\u00f3 total i disponible de peixos i esp\u00e8cies marines per als \u00e9ssers humans.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">En resum, es pot afirmar que la Mediterr\u00e0nia est\u00e0 greument amena\u00e7ada pel canvi clim\u00e0tic, tenint en compte que tot i que nom\u00e9s suposa menys d\u2019un 1% de la superf\u00edcie dels oceans, hi s\u00f3n presents entre el 4 i 18% de les esp\u00e8cies marines, de les quals entre un 25 i 30% d\u2019esp\u00e8cies end\u00e8miques.<\/span><\/p>\n<p style=\"text-align: right;\"><em>Nora Carreras Giralt\u00a0<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&#8217;escalfament global \u00e9s la temperatura de la superf\u00edcie de la Terra, mentre que el canvi clim\u00e0tic inclou l&#8217;escalfament i els efectes secundaris d&#8217;aquest escalfament. Dit d&#8217;una altra manera, l&#8217;escalfament global \u00e9s un s\u00edmptoma del major problema del canvi clim\u00e0tic causat pels \u00e9ssers humans. Quan els cient\u00edfics o l\u00edders p\u00fablics parlen sobre l&#8217;escalfament global, gaireb\u00e9 sempre [&hellip;]<\/p>\n","protected":false},"author":22,"featured_media":7093,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[120],"tags":[539,540],"class_list":["post-7087","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-revista","tag-canvi-climatic","tag-escalfament-global"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/posts\/7087","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/users\/22"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/comments?post=7087"}],"version-history":[{"count":3,"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/posts\/7087\/revisions"}],"predecessor-version":[{"id":7099,"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/posts\/7087\/revisions\/7099"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/media\/7093"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/media?parent=7087"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/categories?post=7087"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/iessitges\/wp-json\/wp\/v2\/tags?post=7087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}