| http://www.w3.org/ns/prov#value | - The oil sands use a lot of natural gas and water to boot.Everyone acknowledges a growing water shortage but little is being to address the problem and the oil sands are a big part of the problem.There are some who says that future oil from the oil sands needs to be eight times current volumes.Before that happens there should be a careful assessment of the costs, including the favourable tax treatm
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