Antarctic Deep Ocean Warming Poses Global Climate Threat.
Deep ocean waters in Antarctica are warming and shrinking at an alarming rate, with significant consequences for the global climate and the world's oceans. The Antarctic Bottom Water, the coldest and densest water mass on the planet, has shrunk by 20% over the past 30 years, while shallower waters warmed at a rate five times higher than the rest of the global ocean. The shrinking of deep waters in Antarctica can have far-reaching consequences, from reducing the ocean's ability to absorb carbon to decreasing the oxygen supply to abyssal waters, affecting deep ecosystems.