Dana1981
2010-04-20 09:16:59 UTC
Perhaps our resident geologist is unaware that the 'divergence problem' has been discussed extensively in the peer-reviewed literature, including by Phil Jones. Here is one example of a paper published in Nature in 1997 co-authored by Briffa and Jones.
"During the second half of the twentieth century, the decadal-scale trends in wood density and summer temperatures have increasingly diverged as wood density has progressively fallen. The cause of this increasing insensitivity of wood density to temperature changes is not known, but if it is not taken into account in dendroclimatic reconstructions, past temperatures could be overestimated."
http://www.nature.com/nature/journal/v391/n6668/abs/391678a0.html
So if they're trying to "hide the decline" in the tree ring data, they're hiding it by discussing it in one of the most prominent and widely-read scientific publications in the world. Do you think the best way to hide something is to publish it in a prominent worldwide journal? Or is it perhaps deniers who "are quick to throw out accusations of lying while enabling actual lies and distortions....because of...political bias"?
http://answers.yahoo.com/question/index?qid=20100420084634AA20fO1
Also, what "several proxies" is he referring to? The divergence problem as far as I know is limited to tree rings in northern latitudes.