Yikes.... It's not that it's more difficult to refine... I mean, they're refining it aren't they? It's just more expensive....
If I recall, Canada is the number 1 exporter for oil to the US. Interestingly, US is #3 oil producer in the world, but only has 2% of the planet's oil reserves... yikes again!
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Cars have not created a new problem. They merely made more urgent the necessity to solve existing ones.
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