We think back in the glacial, from the analysis we've made in the corals, that the deep part of the Southern Ocean was very rich in carbon, and there was a low-density layer sitting on top.
산호에서 얻은 분석을 통해 저희는 과거 빙하기에는 남극해의 깊은 부분은  탄소가 굉장히 많았고, 저밀도의 층이 그 위에  있었다고 생각합니다.