Wahl and Ammann 2007 does not appear to adequately address gd1's points. It just applies a slightly different statistical approach using the same flawed premise.
There are countless arguments and rebuttals to be found on both sides of the debate, but I've found the ones below to be particularly helpful:
There are countless arguments and rebuttals to be found on both sides of the debate, but I've found the ones below to be particularly helpful:
Pro Hockey Stick:
[1] Original MBH98 paper (PDF): http://stephenschneider.stanford.edu/Publications/PDF_Papers...
[2] Wahl and Ammann 2007 (PDF): http://www.cgd.ucar.edu/ccr/ammann/millennium/refs/Wahl_Clim...
[3] Wikipedia article: http://en.wikipedia.org/wiki/Hockey_stick_controversy
[4] Real Climate Hockey Stick "Dummies Guide" (PDF): http://www.realclimate.org/dummies.pdf
Skeptical of Hockey Stick:
[5] Skeptic blog post "Casper and the Jesus Paper": http://bishophill.squarespace.com/blog/2008/8/11/caspar-and-...
[6] "The Hockey Stick Illusions" book (same skeptic author): http://www.amazon.com/The-Hockey-Stick-Illusion-Climategate/...
[7] McIntyre & McKitrick 2003 (PDF): http://climateaudit.files.wordpress.com/2005/09/mcintyre.mck...