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Duffman · 10-13-2012, 11:45 AM

Numbers look excessively conservative to me from other numbers I have heard. There is 100 or so years of extraction out of the oil sands left. I have heard there is 300 years of coal in north America left.

10-13-2012, 11:45 AM	#7 (permalink)
Duffman Master EcoModder Join Date: Mar 2008 Location: Edmonton, AB, Canada Posts: 531 Thanks: 11 Thanked 12 Times in 11 Posts	Numbers look excessively conservative to me from other numbers I have heard. There is 100 or so years of extraction out of the oil sands left. I have heard there is 300 years of coal in north America left.