President Trump will withdraw the United States from the Paris climate accord, which is aimed at sharply cutting the world’s greenhouse gas emissions. If global emissions continue at the so-called business-as-usual level, they could reach 69 gigatons by 2030.
In 2015, nearly 200 countries signed the Paris agreement and set individual targets to reduce emissions. Those pledges would reduce global emissions to 56 gigatons in 2030.
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