US carbon emissions have fallen 14% since 2005

There is no single cause of reductions.

Before 2005, US carbon emissions were marching upwards year after year, with little sign of slowing down.

After this point, they fell quickly, declining 14% from their peak by the end of 2016.

Rather, they were driven by a number of factors, including a large-scale transition from coal to gas, a large increase in wind power, a reduction in industrial energy use and changes in transport patterns, the analysis finds.

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