record low Arctic sea ice extent, but the extreme is in sea ice volume. https://ocean.dmi.dk/arctic/icethickness/thk.uk.php
7000km^3 lower than just 2004-2013 average. Just a normal summer will set big record low next fall, potentially with blue ocean at north pole, and likely further record lows next winter.
Low ice extent is driven primarily by hot summer arctic ocean that is fed by early springs of last year. Air temperatures are not of extreme record warmth.