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Re:Air pollution over Alberta oil sands up to 6,300% higher ... by pfdietz on Friday January 26, 2024 @10:59AM (#39144131)
> For context, Alberta oil sands have an energy ratio of about 4 to 1, meaning it takes one barrel of oil to produce 4 barrels.

They don't actually use oil to produce the oil though, do they? If they need heat it would be cheaper to use (say) natural gas.

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