U.S. Leads World in Power Sector
Emissions trends for 2019 suggest clean energy transitions are underway, led by the power sector. In advanced economies, CO2 emissions are now at levels not seen since the late 1980s (when electricity demand was one-third lower).
Economic growth in advanced economies averaged 1.7 percent in 2019, but total energy- related CO2 emissions fell by 3.2 percent. The power sector led the decline and now accounts for 36 percent of energy-related emissions across advanced economies, down from a high of 42 percent in 2012. The average CO2 emissions intensity of electricity generation declined by nearly 6.5 percent in 2019, a rate three times faster than the average over the past decade.
The U.S. saw the largest decline in energy- related CO2 emissions in 2019 on a country basis. U.S. emissions are now down almost a metric gigaton from their peak in 2000, the largest absolute decline by any country over that period.
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