A 'regime shift' is happening in the Arctic Ocean, scientists say ||html|| ||Mudancas_Climaticas Area_Arctica|2020-7-11_1:26|Skye||https://phys.org/news/2020-07-regime-shift-arctic-ocean-scientists.html|PDC#The Toxic Threat in Thawing Permafrost||html|| ||Mudancas_Climaticas Artica|2023-3-18_23:5|Skye||https://hakaimagazine.com/news/the-toxic-threat-in-thawing-permafrost/|PDC#