{"id":6084,"date":"2023-07-30T10:58:34","date_gmt":"2023-07-30T09:58:34","guid":{"rendered":"https:\/\/radiomiami.us\/?p=6084"},"modified":"2023-07-31T03:20:26","modified_gmt":"2023-07-31T02:20:26","slug":"alarma-en-la-antartida-desaparecio-un-pedazo-de-hielo-del-tamano-de-argentina","status":"publish","type":"post","link":"https:\/\/radiomiami.us\/en\/alarma-en-la-antartida-desaparecio-un-pedazo-de-hielo-del-tamano-de-argentina\/","title":{"rendered":"Alarma en la Ant\u00e1rtida: desapareci\u00f3 un pedazo de hielo del tama\u00f1o de Argentina"},"content":{"rendered":"<div class=\"entry-top\">\n<div class=\"title check-space\" data-color=\"style='background-color:'\">\n<div class=\"mt\">\n<h4>Son 2,6 millones de kil\u00f3metros cuadrados g\u00e9lidos en el mar que no se recuperaron en el invierno tras los derretimientos del verano. Advierten que ya nunca podr\u00edan recobrarse.<\/h4>\n<\/div>\n<\/div>\n<h4><\/h4>\n<h4 class=\"related-photo\">Los hielos marinos de la Ant\u00e1rtida est\u00e1n en su nivel m\u00e1s bajo para esta \u00e9poca del a\u00f1o.<\/h4>\n<h4 class=\"related-photo\"><\/h4>\n<\/div>\n<div class=\"entry-share\"><a id=\"id_facebook_share\" class=\"ic-d\" href=\"https:\/\/www.clarin.com\/sociedad\/alarma-antartida-desaparecio-pedazo-hielo-tamano-argentina_0_DSkSCIxIt8.html#\" aria-label=\"facebook\" data-red=\"facebook\" data-url=\"https:\/\/clar.in\/45q0fK3?fromRef=facebook\"><\/a><a id=\"id_twitter_share\" class=\"ic-d\" href=\"https:\/\/www.clarin.com\/sociedad\/alarma-antartida-desaparecio-pedazo-hielo-tamano-argentina_0_DSkSCIxIt8.html#\" aria-label=\"twitter\" data-url=\"https:\/\/twitter.com\/intent\/tweet?url=https:\/\/clar.in\/45q0fK3?fromRef=twitter&amp;text=Alarma en la Ant\u00e1rtida: desapareci\u00f3 un pedazo de hielo del tama\u00f1o de Argentina%20-\"><\/a><a id=\"id_whatsapp_share\" class=\"ic-d\" href=\"whatsapp:\/\/send?text=Clar%C3%ADn:%20Alarma%20en%20la%20Ant%C3%A1rtida:%20desapareci%C3%B3%20un%20pedazo%20de%20hielo%20del%20tama%C3%B1o%20de%20Argentina%20https:\/\/clar.in\/45q0fK3?fromRef=whatsapp\" aria-label=\"whatsapp\"><\/a><a id=\"id_mail_share\" class=\"ic-d\" href=\"mailto:?subject=Alarma%20en%20la%20Ant%C3%A1rtida:%20desapareci%C3%B3%20un%20pedazo%20de%20hielo%20del%20tama%C3%B1o%20de%20Argentina&amp;body=https:\/\/clar.in\/45q0fK3\" target=\"_blank\" rel=\"noopener\" aria-label=\"mail\"><\/a><a class=\"ic-dialog\" href=\"https:\/\/www.clarin.com\/sociedad\/alarma-antartida-desaparecio-pedazo-hielo-tamano-argentina_0_DSkSCIxIt8.html#activateComments\" aria-label=\"cantidad de comentarios\"><span class=\"numb_comment top\">11<\/span><\/a><\/div>\n<article id=\"entry-body\" class=\"entry-body check-space\" data-mrf-recirculation=\"Article Body\">\n<h4>En medio de la\u00a0<a href=\"https:\/\/www.clarin.com\/mundo\/ola-calor-europa-veranos-40-grados-nueva-normalidad-britanicos_0_sh5z3no717.html\" target=\"_blank\" rel=\"noopener\" data-mrf-link=\"https:\/\/www.clarin.com\/mundo\/ola-calor-europa-veranos-40-grados-nueva-normalidad-britanicos_0_sh5z3no717.html\">ola de calor en el Hemisferio Norte<\/a>, la\u00a0<strong>Ant\u00e1rtida<\/strong>\u00a0estar\u00eda dando las primeras\u00a0<strong>se\u00f1ales<\/strong>\u00a0de que el\u00a0<strong>cambio clim\u00e1tico<\/strong>\u00a0est\u00e1 haciendo mella en su superficie.<\/h4>\n<p>&nbsp;<\/p>\n<h4>Cient\u00edficos descubrieron que, a pesar de la habitual reconstrucci\u00f3n de hielos en invierno, esta vez el continente austral muestra\u00a0<strong>un faltante de superficie equivalente al tama\u00f1o de la Argentina<\/strong>.<\/h4>\n<p>&nbsp;<\/p>\n<div id=\"google_ads_iframe_\/242767168\/clarin\/sociedad\/nota\/inread_0__container__\"><iframe id=\"google_ads_iframe_\/242767168\/clarin\/sociedad\/nota\/inread_0\" tabindex=\"0\" title=\"3rd party ad content\" role=\"region\" src=\"https:\/\/df94f960f68aba3d3a452ed43057d842.safeframe.googlesyndication.com\/safeframe\/1-0-40\/html\/container.html\" name=\"\" width=\"600\" height=\"450\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" sandbox=\"allow-forms allow-popups allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-top-navigation-by-user-activation\" data-is-safeframe=\"true\" aria-label=\"Advertisement\" data-google-container-id=\"f\" data-load-complete=\"true\" data-mce-fragment=\"1\"><\/iframe><\/div>\n<h4>El hielo marino ant\u00e1rtico<strong>\u00a0cay\u00f3 a niveles sin precedentes<\/strong>\u00a0para esta \u00e9poca del a\u00f1o, indic\u00f3 la\u00a0<em>CNN<\/em>.<\/h4>\n<p>&nbsp;<\/p>\n<h4>Todos los a\u00f1os, la superficie marina ant\u00e1rtica se mueve al ritmo de las estaciones.<\/h4>\n<h4><\/h4>\n<h4>Cae a sus niveles m\u00e1s bajos a fines de febrero, en pleno verano, para luego recuperarse y reconstruirse durante el invierno.<\/h4>\n<h4><\/h4>\n<h4>Pero actualmente est\u00e1\u00a0en\u00a0<strong>su nivel m\u00e1s bajo<\/strong>\u00a0para esta \u00e9poca del a\u00f1o desde que comenzaron los registros\u00a0<strong>hace 45 a\u00f1os<\/strong>.<\/h4>\n<p>&nbsp;<\/p>\n<h4>A esta altura de 2023, sin embargo, la cantidad de hielo muestra un faltante gigantesco,\u00a0<strong>similar a la superficie de la Argentina<\/strong>, que<strong>\u00a0desapareci\u00f3 sin atisbo de regenerarse<\/strong>.<\/h4>\n<h4><\/h4>\n<h4>En n\u00fameros, son 2,6 millones de kil\u00f3metros cuadrados, muy cercanos a los 2,78 millones de kil\u00f3metros cuadrados del territorio nacional.<\/h4>\n<p>&nbsp;<\/p>\n<h4>Ahora, los investigadores tratan de explicar\u00a0<strong>el porqu\u00e9 del fen\u00f3meno<\/strong>, que cuenta con\u00a0<strong>alarmas<\/strong>\u00a0adicionales recientes.<\/h4>\n<p>&nbsp;<\/p>\n<h4>En febrero de 2022, un informe de\u00a0<em>Greenpeace<\/em>\u00a0concluy\u00f3 que\u00a0<a href=\"https:\/\/www.clarin.com\/sociedad\/alerta-antartida-hielo-marino-nivel-historia_0_QzwBOCOsQT.html\" target=\"_blank\" rel=\"noopener\" data-mrf-link=\"https:\/\/www.clarin.com\/sociedad\/alerta-antartida-hielo-marino-nivel-historia_0_QzwBOCOsQT.html\">el hielo del Continente Blanco cay\u00f3 de 2,1 millones en 2017 a 1,98 millones de kil\u00f3metros cuadrados<\/a>\u00a0al 20 de febrero de 2022.<\/h4>\n<p>&nbsp;<\/p>\n<h4>Un a\u00f1o m\u00e1s tarde, las cotas se hundieron a\u00fan m\u00e1s: 1,79 millones de kil\u00f3metros cuadrados.<\/h4>\n<h4><\/h4>\n<h4>Esa marca, relativa a la estaci\u00f3n m\u00e1s calurosa del a\u00f1o, es el r\u00e9cord de menor dimensi\u00f3n de hielo marino en la Ant\u00e1rtida.<\/h4>\n<p>&nbsp;<\/p>\n<h4>\u00abYo digo que\u00a0<strong>no al alarmismo<\/strong>, pero hay que vigilar la situaci\u00f3n\u00bb, apunta\u00a0glaci\u00f3loga del Instituto de Oceanograf\u00eda y Geof\u00edsica Experimental (Ogs) de Trieste Florence Colleoni.<\/h4>\n<h4><\/h4>\n<h4>Y a\u00f1adi\u00f3 que\u00a0el hielo marino \u00abestaba &#8216;bajo&#8217; en 2022,\u00a0<strong>en 2023 est\u00e1 muy bajo<\/strong>, muy por debajo de 2010 o antes, pero eso no permite decir si la situaci\u00f3n ser\u00e1 igual o peor en 2024&#8243;.<\/h4>\n<p>&nbsp;<\/p>\n<h4>No es lo mismo que piensa Ted Scambos, glaci\u00f3logo de la Universidad de Colorado Boulder.<\/h4>\n<h4><\/h4>\n<h4>Ante la consulta de\u00a0<em>CNN<\/em>, habl\u00f3 de un\u00a0<strong>\u00abcambio de juego\u00bb<\/strong>.<\/h4>\n<p>&nbsp;<\/p>\n<h4>\u00abEl juego cambi\u00f3. No tiene sentido mantener las mismas probabilidades de que el sistema funcione como sol\u00eda hacerlo.<\/h4>\n<h4><\/h4>\n<h4>Esto nos dice que claramente el sistema cambi\u00f3\u00bb, expres\u00f3 el especialista.<\/h4>\n<p>&nbsp;<\/p>\n<h4>Lo que sucede en la Ant\u00e1rtida es un llamado de atenci\u00f3n por la eventual interrupci\u00f3n de aquel sistema de reducci\u00f3n y ampliaci\u00f3n de hielos que funcionaba hasta el momento.<\/h4>\n<h4><\/h4>\n<h4>Y que, adem\u00e1s, mostraba hasta ahora una situaci\u00f3n muy diferente a la del \u00c1rtico.<\/h4>\n<p>&nbsp;<\/p>\n<h4>Es que ya exist\u00eda un estudio que evidencia una<strong>\u00a0p\u00e9rdida en los hielos del Hemisferio Norte<\/strong>.<\/h4>\n<h4><\/h4>\n<h4>En la Ant\u00e1rtida, por ahora y a pesar de advertencias, eso\u00a0<strong>no suced\u00eda<\/strong>.<\/h4>\n<p>&nbsp;<\/p>\n<h4>\u00abEs dif\u00edcil decir que se est\u00e1 produciendo el mismo fen\u00f3meno.<\/h4>\n<h4><\/h4>\n<h4>Pero podemos afirmar que\u00a0<strong>observamos algo extraordinario<\/strong>\u00ab, dijo\u00a0Colleoni, que complet\u00f3 dos misiones de investigaci\u00f3n a la Ant\u00e1rtida a bordo del buque de investigaci\u00f3n \u00abLaura Bassi\u00bb.<\/h4>\n<p>&nbsp;<\/p>\n<h4>\u00abEl oc\u00e9ano se ha calentado de manera acelerada, pero<strong>\u00a0estamos subestimando esta velocidad<\/strong>.<\/h4>\n<h4><\/h4>\n<h4>Todav\u00eda no sabemos cu\u00e1l es la influencia del calentamiento global, pero ciertamente amplifica el impacto de algunos fen\u00f3menos\u00bb, sostuvo la especialista, que distingui\u00f3 entre los efectos del calentamiento sobre el hielo terrestre (como en el Norte) de los efectos que pesan\u00a0<strong>sobre el hielo marino<\/strong>\u00a0(como los de la remota Ant\u00e1rtida).<\/h4>\n<p>&nbsp;<\/p>\n<h4>Por su parte, Scambos se mantuvo en su posici\u00f3n de alerta. \u00abEste nivel de variaci\u00f3n es tan extremo que\u00a0<strong>algo radical ha cambiado<\/strong>\u00a0en los \u00faltimos dos a\u00f1os, especialmente en el \u00faltimo a\u00f1o\u00bb, expres\u00f3 en di\u00e1logo con\u00a0<em>CNN<\/em>.<\/h4>\n<p>&nbsp;<\/p>\n<h4>Es similar la posici\u00f3n del ocean\u00f3grafo\u00a0Edward Doddridge. \u00abDecir que es algo sin precedentes no es suficiente.<\/h4>\n<h4><\/h4>\n<h4>Para aquellos interesados en estad\u00edstica, se trata de un evento de &#8216;5 sigma&#8217;, son cinco desviaciones est\u00e1ndar\u00a0de la media.<\/h4>\n<h4><\/h4>\n<h4>Si nada cambiara, ver\u00edamos un invierno como este s<strong>olo una vez cada 7,5 millones de a\u00f1os<\/strong>\u00ab, indic\u00f3 a\u00a0<em>ABC News\u00a0<\/em>de Australia.<\/h4>\n<p>&nbsp;<\/p>\n<h4>Volvi\u00f3 a opinar Colleoni. \u00abEl calentamiento global e<strong>s un problema socioecon\u00f3mico<\/strong>, no podemos cambiar radicalmente nuestro estilo de vida pero debemos invertir en la b\u00fasqueda de energ\u00edas alternativas y optimizar el uso de la energ\u00eda, que ser\u00e1 la clave en el futuro\u00bb, indic\u00f3 la cient\u00edfica desde Trieste, en direcci\u00f3n a las causas socioecon\u00f3micas del fen\u00f3meno.<\/h4>\n<p>&nbsp;<\/p>\n<h4>Scambos, en cambio, se explay\u00f3 sobre los factores naturales: vientos m\u00e1s fuertes desde el oeste y temperaturas m\u00e1s altas de la porci\u00f3n oce\u00e1nica que rodea a las aguas ant\u00e1rticas.<\/h4>\n<p>&nbsp;<\/p>\n<h4>\u00abProbablemente no veamos que el sistema ant\u00e1rtico se recupere por un pr\u00f3ximo per\u00edodo bastante largo, e incluso es probable<strong>\u00a0que ya no lo que haga nunca<\/strong>\u00ab, asegur\u00f3.<\/h4>\n<p>&nbsp;<\/p>\n<h4>Temporal o definitiva, la reducci\u00f3n de hielos marinos generar\u00eda un efecto multiplicador en las consecuencias del cambio clim\u00e1tico: con menos hielo,<strong>\u00a0la luz solar ser\u00e1 absorbida por el oc\u00e9ano\u00a0<\/strong>en vez de ser rechazada por las piezas de agua s\u00f3lida.<\/h4>\n<h4><\/h4>\n<h4>Se estima que la capa glacial refleja hasta el 90% de la radiaci\u00f3n solar que le llega.<\/h4>\n<p>&nbsp;<\/p>\n<h4>De acuerdo a la Coalici\u00f3n Ant\u00e1rtica y del Oc\u00e9ano Austral, otras dos funciones de los hielos son el almacenaje de agua dulce en estado s\u00f3lido -con la consiguiente regulaci\u00f3n de los niveles del mar- y cumplir el rol de un \u00abtermostato global\u00bb.<\/h4>\n<p>&nbsp;<\/p>\n<p><em>Con informaci\u00f3n de ANSA y CNN<\/em><\/p>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>Son 2,6 millones de kil\u00f3metros cuadrados g\u00e9lidos en el mar que no se recuperaron en el invierno tras los derretimientos del verano. Advierten que ya nunca podr\u00edan recobrarse. Los hielos marinos de la Ant\u00e1rtida est\u00e1n en su nivel m\u00e1s bajo para esta \u00e9poca del a\u00f1o. 11 En medio de la\u00a0ola de calor en el Hemisferio [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6085,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","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":[1],"tags":[],"class_list":["post-6084","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-podcast"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Alarma en la Ant\u00e1rtida: desapareci\u00f3 un pedazo de hielo del tama\u00f1o de Argentina - Radio Miami<\/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:\/\/radiomiami.us\/en\/alarma-en-la-antartida-desaparecio-un-pedazo-de-hielo-del-tamano-de-argentina\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Alarma en la Ant\u00e1rtida: desapareci\u00f3 un pedazo de hielo del tama\u00f1o de Argentina - Radio Miami\" \/>\n<meta property=\"og:description\" content=\"Son 2,6 millones de kil\u00f3metros cuadrados g\u00e9lidos en el mar que no se recuperaron en el invierno tras los derretimientos del verano. 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