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The Triumph (and Challenge) of Climate Math

Harvard Business Review

Last week PwC released its Low Carbon Economy Index 2012 report, which calculated one simple, powerful number: In order to meet the 2°C warming target, we will need to reduce the global carbon intensity (how much carbon it takes to produce every unit of energy or GDP) by 5.1% every year until 2050. we do claim to love hard-nosed numbers.