Talk:Marginal abatement cost

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Shouldn't description of a cost curve at least include a description of what the axes mean? Abatement potential on the x axis is clear enough, but what is the "cost" shown on the y-axis? Cost per tCO2e abated? What is the implication of the negative cost - technologies which pay for themselves - how? 81.106.218.66 (talk) 13:01, 22 December 2010 (UTC)

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