Scientists sent autonomous underwater robots into the Drake Passage, one of the most dangerous stretches of ocean on Earth, and discovered that underwater mountains are driving a major carbon pump. The peaks stir up deep water, mixing layers that normally stay separate, and carry phytoplankton down into the depths. This locks away carbon for centuries instead of letting it leak back into the air. The Southern Ocean already absorbs about 40 percent of all carbon taken up by the world's oceans, and the Drake Passage appears to be a hotspot for this process. The findings highlight how seafloor topography can amplify natural carbon sequestration. Researchers are still mapping the full extent of these seamounts, but the evidence suggests they have been running this pump for millions of years. Understanding these mechanisms could inform climate models and marine conservation priorities. The article is worth reading for anyone interested in natural carbon sinks and the hidden geography of the ocean floor.
