http://www.climate-skeptic.com/2009/04/steve-mcintyre-on-the-hockey-stick.html Fri, 30 Jul 2010 00:47:37 -0700 http://wordpress.org/?v=2.9.2 hourly 1 http://www.climate-skeptic.com/2009/04/steve-mcintyre-on-the-hockey-stick.html/comment-page-1#comment-4720 Jim Fri, 03 Apr 2009 18:10:56 +0000 http://www.climate-skeptic.com/?p=952#comment-4720 Nitrogen oxides can also act as a fertilizer. These tend to be concentrated at higher altitudes. Modern air pollution in this form might have contributed to the Bristlecone proxy problem. Nitrogen oxides can also act as a fertilizer. These tend to be concentrated at higher altitudes. Modern air pollution in this form might have contributed to the Bristlecone proxy problem.

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