I saw this expressed a different way – only 6% of multi-year ice, relative to 1984, remains.
«"What good is extent if thickness is incomparable to 2012?
I agree. It is very bleak. 2012 was still melting through multi-yr ice of 2-3M
2017 is going to be feasting on 1-1.5M ice that hasn't seen a summer
The losses vs. all other years over the next 30 days are going to mount to
absurd levels due to the volume deficit which is now going to manifest in
continued area/extent drops.
It's as if nearly the entire Arctic was covered in the ice of Hudson Bay.»