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>President Donald Trump’s efforts to boost fossil fuel extraction face a courtroom hurdle of his own making.
His March 28 executive order “promoting energy independence and economic growth” rescinded the Obama administration’s calculation of the “social cost of carbon” — a metric that had been central to the process of crafting and justifying government rules addressing human-driven climate change.

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Full article in Science AAAS: <a href="http://www.sciencemag.org/news/2017/08/trump-s-attack-social-cost-carbon-could-end-hurting-his-fossil-fuel-push">http://www.sciencemag.org/news/2017/08/trump-s-attack-social-cost-carbon-could-end-hurting-his-fossil-fuel-push</a>