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Pathways to a low-carbon economy: version 2 of the global greenhouse gas abatement cost curve

Whilst leaders in many nations discuss ambitious targets for reducing emissions of greenhouse gases (GHGs), there is also an intense debate underway regarding the technical and economic feasibility of different target levels, what emission reduction opportunities should be pursued, and the costs of different options for meeting the targets. To provide a quantitative basis for such discussions, McKinsey & Company, supported by ten leading global companies and organisations