Report: U.S. Had World’s Largest Decline in CO2 Emissions in 2017

The United States in 2017 experienced the largest decline in carbon emissions in the world, according to a recent report.

The American Enterprise Institute, a conservative think tank, said the U.S. last year had a growth rate in carbon emissions of -0.5 percent and a decrease of 42 million tons, citing data from oil giant BP's Statistical Review of World Energy, published in June.

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