RT null T1 The Environmental Impacts of Exploitation of Oil Shales and Tar Sands A1 United Nations Environment Programme, A1 Institute of Geochemistry, Petrology and Economic Geology K1 oil shale K1 environmental impact assessment K1 mining K1 energy resource YR 1985 FD 1985-04 LK https://wedocs.unep.org/handle/20.500.11822/28964 UL https://wedocs.unep.org/handle/20.500.11822/28964 NO The present report deals with the environmental impacts of exploitation of oil shales and tar sands. In undertaking this review, a great deal of information had to be gathered and scrutinized. In many cases, data had to be re-calculated to standardize the environmental impacts presented, on the basis of production of 50,000 barrels/day of syncrude, which is the general capacity of plants under construction or planned. DS UN Environment Document Repository RD Sep 18, 2026