Last weekend, US meteorologist Anthony Watts noticed that something very odd had happened to the daily updated website that shows how much sea ice there is in the Arctic.
Without explanation, a half million square kilometres of ice vanished overnight.
This might have brought cheer to Al Gore and the BBC, who have been obsessively telling us that the Arctic ice will soon disappear altogether. They were dismayed enough last winter when, after reaching its lowest point in 30 years, the ice bounded back to near normal.
This winter the freeze has been even faster and greater, making the extent of the ice 500,000sqkm greater than last year. How better to maintain the chosen narrative than to lose a half million square kilometres simply by adjusting the graph downwards?
Let’s see if I can find the post from Watts… Ah here it is. Oh, what does this update say?
I received this email from Stein Sandven at Nansen in response to my query:
The ice area calculation has been too high since about 22 October, causing too steep slope of the 2008 curve. We corrected for this yesterday and recalculated the ice area for 2008. The slope of the 2008 curve should now be correct and can be compared with 2007 and the previous mean monthly ice area.
For my opinion though it seems to be an incomplete answer, generating even more questions.
Yeah, sure it does, Mr Watts.
The update was added on December 13 (scroll down in the comments to Watt’s post to see this).
Booker published his piece on December 21, claiming that there was no explanation when, in fact, there was.
So what does the Nansen graph look like now?
The difference from last year is not significant, but Arctic sea ice extent is the lowest ever recorded for December 20.
David Appell looks at the figures from IARC-JAXA and the NSIDC and they also show a record low.
Given that there is now no possible cherry pick that the denialists can now use to make it look like Arctic sea ice is increasing, I predict that they will start talking about Antarctic sea ice.