The Barents Sea Was Seasonally Ice Free For Much Of The Holocene...Today It's Ice-Covered Year-Round

More evidence has emerged suggesting there is more sea ice in the Arctic today than nearly any time in the last 8000 years. - Kenneth Richard 

• According to a new study, biomarker evidence suggests the Barents Sea (Arctic) was seasonally “ice free” from ~8000 to ~2100 years ago, or back when the CO2 concentration was said to be about 265 ppm.
• For the last 2100 years sea there has been year-round sea ice in this region ...
• The modern period (1988-2007) has among the highest sea ice levels of the Holocene, with ~80% coverage in spring (Koseoglu, 2019)...