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The Triumph (and Challenge) of Climate Math

Harvard Business Review

To answer these tough questions, we can turn to two of the world's best number crunchers, McKinsey and PwC (full disclosure: I have a consulting partnership arrangement with PwC US). For perspective, in 2011 carbon intensity improved just 0.8%. 260 billion : Global clean energy investment in 2011. How fast do we have to change?