Ah Distinctly I Remember, It was Balmy in November

According to the National Climatic Data Center (NCDC), November 2010 was the warmest on record. According to NASAs Goddard Institute for Space Studies, it was the second warmest on record. Both agree that January-November 2010 was the warmest on record.

All of this according to Jeff Masters at Wunder Blog, who also points out…

The record or near-record November global warmth is remarkable, given that we are in the midst of a moderate strength La Niña episode in the Eastern Pacific. The large amount of cold water that upwells to the surface during a La Niña typically causes a substantial cool-down in global temperatures, making a monthly temperature record difficult to set.

The November temperature record is all the more remarkable since we are near the minimum of the 11-year solar sunspot cycle. Global temperatures are cooler by about 0.1°C for the two years following a solar minimum, compared to global temperatures two years after solar maximum. Our current minimum in solar energy makes it much more difficult to set monthly global temperature records.

Wunder Blog : Weather Underground

In other words, these two forces are holding back the warming, which would have been greater without them.

We have been warned that the effects of global warming would be greatest at the poles. So how is that Arctic sea ice holding up?

Not well, not well at all. November 2010 sea ice cover was not quite as low as 2006, but by December 24, sea ice was at an all time record low.

In fact, Arctic sea ice decreased this week, at a time of year it normally increases rapidly.

Note the dotted line in the graph above (credit to the University of Bremen). That is the average cover from 1972 to 2008, and every year since 2003 is below it.

All of which confirms what Pogo said: “The struggle for the future is behind us.”

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