New peer reviewed paper says “there appear to have been periods of ice free summers in the central Arctic Ocean” in the early Holocene, about 10-11,000 years ago

WUWT
"..Now, inconveniently, we have this new paper via ScienceDirect New insights on Arctic Quaternary climate variability from palaeo-records and numerical modelling which says that their studies show that the early Holocene might very well have had ice free summers. This is interesting, because as this generally well accepted graph shows, temperature was higher then. But there’s more. ...."