https://www.scientificamerican.com/article/declining-antarctic-sea-ice-could-disrupt-a-major-carbon-sink/
#SeaIce #Antarctica #CarbonSink #OceanSink #GlobalCarbonProject #GlobalCarbonBudget
That's an old-ish article about Antarctic sea ice from 2020. It's mainly about a process that lets AA sea ice grow when Northern Hemisphere warms, like during deglaciation.
The bigger area of winter sea ice then accumulates more nutrients on its surface and when it melts in spring, the nutrients feed ocean creatures. The more ocean creatures, the bigger the ocean carbon sink. This process is thought to be responsible for a CO2 plateau at 240ppm lasting 2000 years during the last warming of the Northern Hemisphere, the last deglaciation.
And nowadays, lower sea ice expansion in AA winters might shrink the ocean carbon sink in spring due to lower nutrient availability.
The article mentions a few other then-recent papers on the ocean sink.
Just thought it might interest some if you because of the 2 updates this week, one update of the Global Carbon Project, and the other an update of the 2019 IPCC report on cryosphere and ocean.