Bjorn Lomborg is president and founder of the Copenhagen Consensus Center and a visiting professor at Copenhagen Business School. The election of Donald Trump and Republican majorities in both houses have terrified environmentalists and climate campaigners, who have declared that the next four years will be a “disaster.”
Even ardent supporters acknowledge that the Paris treaty by itself will do little to rein in global warming. The United Nations estimates that if every country were to make every single promised carbon cut between 2016 and 2030 to the fullest extent and there was no cheating, carbon dioxide emissions would still only be cut by one-hundredth of what is needed to keep temperature rises below 3.6 degrees Fahrenheit (2 degrees Celsius). The Paris treaty’s 2016-2030 pledges would reduce temperature rises around 0.09 degrees Fahrenheit by the end of the century. If maintained throughout the rest of the century, temperature rises …
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