NSIDC director Serreze: “The volume of ice left in the Arctic likely reached the lowest ever level this month.”
Serreze (photo at right): “I stand by my previous statements that the Arctic summer sea ice cover is in a death spiral. It’s not going to recover.” (Sept 2010)
“The reason so much (of the Arctic ice) went suddenly is that it is hitting a tipping point that we have been warning about for the past few years.” James Hansen, 2007
If Arctic sea ice was truly in a 'death spiral,' why does the 1st derivative (rate of change) of Arctic sea ice show one of the earliest and healthiest recoveries from the 2010 summer minimum over the past 7 years?
In addition, the 1st derivative for Antarctica sea ice also shows one of the longest sustained rates of sea ice accumulation for the 2010 winter compared to the past 7 years:
h/t http://daltonsminima.altervista.org/?p=11750
Maybe the good NSIDC director should peruse the Danish Meteorological Institute's Artic sea ice cover graph.
ReplyDeleteThe rate of change is steep compared to the previous years sea ice increase.
JeffT