GreenGrl » variables http://greengrl.org Taking Care of Mother Earth Fri, 25 May 2012 02:54:38 +0000 en hourly 1 http://wordpress.org/?v=3.1.3 What makes tree ring data such a reliable source of past climate? http://greengrl.org/what-makes-tree-ring-data-such-a-reliable-source-of-past-climate/ http://greengrl.org/what-makes-tree-ring-data-such-a-reliable-source-of-past-climate/#comments Tue, 04 May 2010 01:27:57 +0000 admin http://greengrl.org/what-makes-tree-ring-data-such-a-reliable-source-of-past-climate/ Climategate reveals that using tree ring data is not always reliable, the temperature calculated from tree rings didn’t match up to actual instrument readings, that’s why they threw it out. Makes a lot of sense, I’d do the same. Today scientist know precisely what the variables are but for some unknown reason they are unable to calculate the temps using tree rings. However they don’t question the reliability of data prior to instrument readings, when we knew less about the environment of those times than we do today.

So what makes tree ring data such a reliable source of past climate?

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