Perspective… What a novel idea!

What do you get when you combine the GISP2 d18O climate reconstruction (Alley) with Ljungqvist’s recent 2,000 Northern Hemisphere reconstruction and the HadCRUT3 Northern Hemisphere instrumental data?

You get something called “perspective.”

10,000 years of perspective.

5,000 years of perspective.

3,500 years of perspective.

 

Data Sources

Hadley Centre / UEA CRU (via Wood for Trees).

Ljungqvist, F.C. 2010.
A new reconstruction of temperature variability in the extra-tropical Northern Hemisphere during the last two millennia. Geografiska Annaler: Physical Geography, Vol. 92 A(3), pp. 339-351, September 2010. DOI: 10.1111/j.1468-0459.2010.00399.x

Alley, R.B. 2000.
The Younger Dryas cold interval as viewed from central Greenland. Quaternary Science Reviews 19:213-226.

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