For several years, researchers have actually questioned whether a large thick ice rack as soon as covered the whole Arctic Sea throughout the chilliest glacial epoch. Currently, a brand-new research study released in Scientific research Advancements difficulties this concept as the research study group located no proof for the existence of an enormous ~ 1km ice rack. Rather, the Arctic Sea shows up to have actually been covered by seasonal sea ice– exposing water and vital problems also throughout the toughest durations of cool durations throughout the last 750,000 years.
发布者：Dr.Durant，转转请注明出处：https://robotalks.cn/frozen-but-not-sealed-arctic-ocean-remained-open-to-life-during-ice-ages-study-suggests/
