Professor Zhengyu Liu comments on a new paper published in Nature Communications which suggests that the Atlantic Meridional Overturning Circulation—a system of currents that circulates warm and cold waters within the Atlantic Ocean—could soon collapse. See https://heatmap.news/climate/atlantic-meridional-overturning-circulation-ditlevsen-prediction For more on AMOC, see https://oceanservice.noaa.gov/facts/amoc.html