Five truths about climate change

2) Regardless of whether it’s getting hotter or colder—or both—we are going to need to produce a lot more energy in order to remain productive and comfortable.

3) The carbon-dioxide issue is not about the United States anymore. Sure, the U.S. is the world’s second-largest energy consumer. But over the past decade, carbon-dioxide emissions in the U.S. fell by 1.7%. And according to the International Energy Agency, the U.S. is now cutting carbon emissions faster than Europe, even though the European Union has instituted an elaborate carbon-trading/pricing scheme. Why? The U.S. is producing vast quantities of cheap natural gas from shale, which is displacing higher-carbon coal.

Meanwhile, China’s emissions jumped by 123% over the past decade and now exceed those of the U.S. by more than two billion tons per year. Africa’s carbon-dioxide emissions jumped by 30%, Asia’s by 44%, and the Middle East’s by a whopping 57%. Put another way, over the past decade, U.S. carbon dioxide emissions—about 6.1 billion tons per year—could have gone to zero and yet global emissions still would have gone up.

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