The second item (currently) on this link gives more info on Shell's technology (being used in China) and oil shale reserves/recovery.
This article quotes prices for oil having to be sustained in the range $70-$90 to justify shale oil extraction - seems more realistic to me than the $30 quoted in the other article.
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Always sufficient hills - never sufficient gears
Last edited by Cyclefrance; 09-03-2005 at 06:44 PM.
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