The paper Observation-based early-warning signals for a collapse of the Atlantic Meridional Overturning Circulation in Nature Climate Science by Niklas Boers was the second most featured climate science paper in news media and on SoMe in 2021 according to Carbonbrief.org.
Carbonbrief.org specialises in the science and policy of climate change.
In the paper, Boers (PIK Potsdam) analyses surface salinity temperature data to conclude that the AMOC, a North Atlantic ocean current system which is important in redistributing heat from the tropics to the northern hemisphere is approaching a tipping point. Read our mention of the study here.