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Politics : The Environmentalist Thread

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To: Maurice Winn who wrote (23302)	11/27/2008 11:03:17 AM
From: Triffin	Read Replies (1) of 36917

Maurice .. I've always felt that the degree of axial tilt or obliquity was the driver in climate change, after all without it we wouldn't have 'seasons' ... The simple fact that at 42' N latitude ( where I reside ) we vary from less than 10 hours of solar input in winter to greater than 14 hours per day during summer is enough to trigger our annual migration from winter wasteland to sub-tropical paradise .. Per Wiki .. the obliquity of the earth is currently declining ( ie ) we're headed towards 22' from +23'; thus a more upright rotation ( less extremes from summer to winter in terms of hours of sunlight ) and just coming out of the current cycle solar minimum argues ( to me ) that we'll experience more warming going forward ..... I realize that there are other inputs and various feedback mechanisms with regards to short cycle heating and cooling effects, but the degree of obliquity seems a very powerful climatic driver .... en.wikipedia.org Triff ..

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