Arctic 2K year trend is toast

 

2,000+ year-long trend of slow Arctic cooling appears over

By Matt Owens        March 27, 2013

        A rapid and dangerous warming is underway in the Arctic. 

        This chart, based on results of work by Kaufman et al. (Science, 2009), shows how a long term cooling with low-level volatility has come to an abrupt end.

        The years on the graph after 1915 are highlighted orange instead of blue. The dashed red line is a hundred year running average.

        Data runs to 1995 and includes areas north of 60°N.

         In the decade or so since the end of this reconstruction, temperatures have climbed higher still, and at an accelerating rate.

        As many of you know, time is running out to prevent a runaway warming.

        Below: 2 videos:

1. One of the first videos I ever took (and without planning to): 2013 Washington Climate Rally; about 2 minutes.
2. Jennifer Francis whose research on the connection between Arctic changes and global weather changes has been exceptionally useful and interesting; 40 minutes (with good audio quality).

 

 

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Comments

[Fairfax Climate Watch]

I didn't include error bars on this chart because the excursion is well outside the margins.

[Jpgreenword.wordpress.com]

That corroborates with a study done by researchers at Oregon State University where they reconstructed temperatures going back 11,000 years. (http://jpgreenword.wordpress.com/2013/03/19/the-end-of-a-stable-climate/) Seems the whole world was slowly cooling until we decided to use fossil fuels as an energy source.

[Fairfax Climate Watch]

yea, the history of Earth's temperature is really fascinating. I just read an article by William Ruddiman from 2010 suggesting that the confusion about what caused the last ice age may come from faulty proxy data for the pre-ice core era. It looks like CO2 and CH4 really are the biggest culprits in most of the planet's temperature changes.