Arctic sea ice extent went below 6 million km² during July for the first time on record, yet 2012 was first below 5. Chart shows 2012 as lowest in mid August, but 2019 extent may still plunge after the recent cyclone.

Q: Where’s the data source for this plot?
A: Here:
Q: Why only 5 years and why these particular years?
A: Elementary. These are the 5 years on record that came closest to a Blue Ocean Event.

Due in large part to ongoing Collapse of Arctic Sea Ice our Frozen Earth is Going South.