Challenging assumptions about how we live on the earth and protect our environment.
29 May 2007
Global Climate Change: Going to H-E-Double Hockey Sticks?
Stefan Rahmstorf of RealClimate posted this morning about the notorious millennial temperature curve, stating that new IPCC report compiles a dozen reconstructions for the temperature of the Northern Hemisphere, confirming that Northern Hemisphere temperatures are now higher than at any time during the past 1,000 years (see above image) and strengthening the conclusions drawn in the previous IPCC report of 2001. This despite opinions to the contrary such as those in the Wall Street Journal.
The authors also note that climate skeptics have long cited a graph from the 1990 IPCC report that was meant to illustrate an estimate for central England, but was not identified as such in the report. See also RealClimate's "Dummies Guide to the Hockey Stick."
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