Green Options » hockey stick http://greenoptions.com/tag/hockey-stick Posts tagged 'hockey stick' Thu, 04 Sep 2008 18:31:17 +0000 http://wordpress.org/?v=2.5.1 en Global Warming Hockey Stick Still Viable Despite Attacks http://planetsave.com/blog/2008/09/04/global-warming-hockey-stick-still-viable-despite-attacks/ http://planetsave.com/blog/2008/09/04/global-warming-hockey-stick-still-viable-despite-attacks/#comments Thu, 04 Sep 2008 18:31:17 +0000 Joshua S Hill http://planetsave.com/blog/2008/09/04/global-warming-hockey-stick-still-viable-despite-attacks/ 0901temps One of my passions in life is climate science and research, and I am a strong defender of the science proving anthropogenic global warming. The UN Intergovernmental Panel on Climate Change has long attempted to bring to the forefront the scientific facts about humanities effects on the environment. Naturally, there have been those who have set out to simply ignore or discredit them at every turn.

One of the focuses of their attacks has been what some call the “notorious hockey stick” graph. The graph shows a fluctuating temperature variation over the past 2000 years (including the Medieval Warming period), with a marked spike at the end; in other words, a flat (for a given value of flat, see graph below) line and a curve at the end, similar to a hockey stick. You will have seen the graph if you’ve watched Al Gore’s An Inconvenient Truth.

Now, a new report in the Proceedings of the National Academy of Sciences entitled “Proxy-based reconstructions of hemispheric and global surface temperature variations over the past two millennia” has once again validated the science behind the hockey stick graph.

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