Experts say Arctic sea ice is rapidly disappearing and has been since the start of satellite records in 1979. Fourth National Climate Assessment “During the period monitored by satellites (1979-2019), the minimum Arctic sea ice extent in mid-September has shown … Continue reading →
via Real Climate Science
August 28, 2021 at 02:38PM

From Hansen et al 1999:
https://pubs.giss.nasa.gov/docs/1999/1999_Hansen_ha03200f.pdf#page=37
(Of course, since then they’ve “corrected” the data so that 1998 is warmer than 1934.)
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