{"id":66630,"date":"2025-11-26T15:22:08","date_gmt":"2025-11-26T18:22:08","guid":{"rendered":"https:\/\/redept.com.br\/blogosfera\/o-que-e-permafrost\/"},"modified":"2025-11-26T15:22:08","modified_gmt":"2025-11-26T18:22:08","slug":"o-que-e-permafrost","status":"publish","type":"post","link":"https:\/\/redept.com.br\/blogosfera\/o-que-e-permafrost\/","title":{"rendered":"O que \u00e9 permafrost?\u00a0"},"content":{"rendered":"<p><strong>PERMAFROST \u00c9 <\/strong>a camada abaixo da superf\u00edcie da Terra que permanece congelada a 0\u00b0C ou abaixo disso por no m\u00ednimo dois anos seguidos \u2014 na maioria dos casos, por centenas ou milhares de anos. Ele se estende por um quarto do Hemisf\u00e9rio Norte, incluindo regi\u00f5es que n\u00e3o s\u00e3o cobertas por neve.\u00a0<\/p>\n<p>O degelo deste solo, causado pelo aquecimento global, gera eros\u00e3o, libera res\u00edduos t\u00f3xicos em lagoas e rios, amea\u00e7a liberar microrganismos perigosos, assim como potenciais emiss\u00f5es de carbono retidos no gelo h\u00e1 milhares de anos.<\/p>\n<p>Esse solo congelado est\u00e1 presente sob grandes partes do Alasca, Canad\u00e1 e Sib\u00e9ria, onde comunidades ind\u00edgenas vivem, trabalham e ca\u00e7am h\u00e1 centenas de anos e sofrem lentamente os impactos do aumento da temperatura global. O degelo da camada de permafrost remodela paisagens, desloca vilas inteiras e fragiliza habitats de animais.\u00a0<\/p>\n<p>E \u00e0 medida que gases de efeito estufa s\u00e3o liberados durante o descongelamento, cria-se um ciclo de polui\u00e7\u00e3o: as temperaturas globais aumentam, o degelo do permafrost libera mais gases de efeito estufa, o planeta aquece e a camada de permafrost derrete ainda mais.\u00a0<\/p>\n<p>Em 2019, o Pnuma (Programa das Na\u00e7\u00f5es Unidas para o Meio Ambiente) classificou a perda do permafrost como uma das dez principais quest\u00f5es emergentes de preocupa\u00e7\u00e3o ambiental.<\/p>\n<p>Fontes:<\/p>\n<p> https:\/\/news.un.org\/en\/story\/2022\/01\/1110722<\/p>\n<p>https:\/\/apps.ipcc.ch\/glossary<\/p>\n<p>https:\/\/www.undrr.org\/understanding-disaster-risk\/terminology\/hips\/en0305?utm_source=<\/p>\n<p>https:\/\/news.un.org\/en\/story\/2022\/01\/1110722<\/p>\n<p>https:\/\/apps.ipcc.ch\/glossary<\/p>\n<p>https:\/\/www.undrr.org\/understanding-disaster-risk\/terminology\/hips\/en0305?utm_source=<\/p>\n<div data-elementor-type=\"container\" data-elementor-id=\"75228\" data-elementor-post-type=\"elementor_library\">\n<div data-id=\"5e8db1e6\" data-element_type=\"container\">\n<div>\n<div data-id=\"36eb6c91\" data-element_type=\"container\">\n<div>\n<div data-id=\"6f52f515\" data-element_type=\"container\">\n<div data-id=\"65d9f401\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n<div>\n<div>\n\t\t\t<span><br \/>\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div data-id=\"134a1245\" data-element_type=\"container\">\n<div>\n<div data-id=\"10fe55fe\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n<div>\n<p>Leia tamb\u00e9m<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div data-id=\"3c9495ae\" data-element_type=\"widget\" data-settings='{\"template_id\":\"75221\",\"columns\":1,\"row_gap\":{\"unit\":\"px\",\"size\":10,\"sizes\":[]},\"_skin\":\"post\",\"columns_tablet\":\"2\",\"columns_mobile\":\"1\",\"edit_handle_selector\":\"[data-elementor-type=\"loop-item\"]\",\"row_gap_tablet\":{\"unit\":\"px\",\"size\":\"\",\"sizes\":[]},\"row_gap_mobile\":{\"unit\":\"px\",\"size\":\"\",\"sizes\":[]}}' data-widget_type=\"loop-grid.post\">\n<div>\n<div>\n\t\t<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p>\n<p>The post O que \u00e9 permafrost?\u00a0 appeared first on Rep\u00f3rter Brasil.<\/p>\n<!-- Begin Yuzo --><div class='yuzo_related_post style-1'  data-version='5.12.89'><!-- without result --><div class='yuzo_clearfixed yuzo__title yuzo__title'><h3>Related Post<\/h3><\/div>\n\t\t\t\t\t\t  <div class=\"relatedthumb \" style=\"width:125px;float:left;overflow:hidden;\">  \n\t\t\t\t\t\t\t  \n\t\t\t\t\t\t\t  <a  href=\"https:\/\/redept.com.br\/blogosfera\/haddad-diz-que-mercado-financeiro-ignora-melhorias-do-governo-na-economia\/\"  >\n\t\t\t\t\t\t\t\t\t  <div class=\"yuzo-img-wrap \" style=\"width: 125px;height:90px;\">\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<div class=\"yuzo-img\" style=\"background:url('https:\/\/redept.org\/blogosfera\/wp-content\/plugins\/yuzo-related-post\/assets\/images\/default.png') 50% 50% no-repeat;width: 125px;height:90px;margin-bottom: 5px;background-size: cover; 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