Tag: Keystone XL tar sands pipeline

Question:  Is the practice of turning crude from tar sands into gasoline more environmentally destructive than the processing of conventional crude?  If so, how many times more damaging is it? Answer: Can be found at Clean Energy Answers.

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One of the most important ingredients that figures into the analysis of energy in the 21st Century is “Energy Return on Investment” (EROI). It takes energy to generate energy; this is true; there is no free lunch—but how much energy? …

How We Measure the Validity of a Certain Source of Energy Read More »

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