22nd oil shale symposium proceedings
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FOREWORD The Twenty-second Oil Shale Symposium was held at a criti cal time in the development of a commercial oil shale industry. World oil prices were less than $20 per barrel and there was a world-wide concern about both environmental problems of mining and the "green house" effect created by the carbon dioxide released when hydrocarbons are burned. Activity in oil shale development was at a fifteen year low and there were no bright prospects apparent in the near future. However, U. S. petroleum consumption is predicted to continue to increase, U. S. crude oil production is decreasing and is ...