Arctic Sea Ice is 6.7% below the mean for the day … (Day 365) … and there will be a Day 366 … (but I may be too hungover to post). Or throwing myself in the ocean for the New Years Day Swim!
And 1,000 sq km below 2010 (for day 365). 12,669,000 versus 12,670,000
sunshine hours 
Seems to me that the greatest loss of Arctic sea ice began around ~2000 with a fair stability after that (oscillating between 13.3 and 12.7 million km2 for the date. So one has to wonder whether or not there are step-wise changes that took place around the beginning of the new millennium which are not related to GHG’s but instead meteorological conditions, i.e. recurrent flushing of old, thicker sea ice out the Fram Strait due to persistent high pressure systems located off the northwestern part of Greenland.)
Surely since ~40% of all CO2 emissions have occurred since 2000, it only stands to reason that the physics of LWIR retention by CO2 cannot explain the relative stability nor step-wise reduction around that same time frame and that some other concurrent phenomenon is at work here.