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Climate change: Lessons for our future from the distant past / David F. Hendry, Vox EU, 27 October 2014http://www.voxeu.org/article/climate-change-lessons-our-future-distant-pastClimate change has been the main driver of mass extinctions over the last 500 million years. This column argues that current evidence provides a stark warning. Human activity is producing greenhouse gases, and as a consequence global temperatures and ocean heat content are rising. Such trends raise the risk of tipping points. Economic analysis offers a number of ideas, but a key problem is that distributions of climate variables can shift, invalidating stationarity-based analyses, and making action to avoid possible future shifts especially urgent...