It appears that we have truly crossed a threshold. Since 2005, every year Arctic sea ice extents have been below every other year in the record back to 1979. Of course, we can’t tell with absolute statistical certainty. But we have been warned for decades that this would happen. This year’s melt record exceed the…
Our buddy Tedesco at Cryospheric Processes tells us that The Greenland Melt Index ranked 6th in 2011. The melt index anomaly is the number of days with detectable surface melt compared to the baseline period of 1979-2010, and is estimated from satellite microwave observations. But this “melt index” is something like comparing sea ice extents…
