"Arctic sea ice cover was strongly reduced during most of the early Holocene; there appears even to have been periods of ice free summers in large parts of the central Arctic Ocean (Fig. 2)."
Wikipedia, edited by activists such as William Connolley, falsely claims,
"There is currently no scientific evidence that a seasonally ice-free Arctic Ocean existed anytime in the last 700,000 years, although there were periods when the Arctic was warmer than it is today."
|Periods of low sea ice are shown in dark green. Horizontal axis is thousands of years before the present.|