In reply to Taylor J. Smith's message of Sat, 14 Oct 2006 13:22:19 +0000: Hi, [snip] >The early Eocene (~56 to 49 million years ago) had the >highest prolonged global temperatures of the past 65 >million years. High Eocene [CO2]atm is established from >sodium carbonate minerals formed in saline lakes and >preserved in the Green River Formation, western United >States. [snip] Green River is also where the huge US oil shale deposits are found. Could there be a connection? Perhaps the high CO2 concentration was only local?
Regards, Robin van Spaandonk http://users.bigpond.net.au/rvanspaa/ Competition provides the motivation, Cooperation provides the means.

