The data are included in the Natural Resources Defense Council’s (NRDC) third annual energy report published earlier this month. The group reports that carbon dioxide pollution has dropped by a full 10% in the period between 2005 and 2014 and that oil consumption has fallen to levels equal to those in 1973, when the U.S. population was about one-third its current size.
As for renewables, in 2014 non-hydropower sources such as solar, wind and geothermal produced three times as much electricity as hydropower sources, 7.5% to 2.5%. Nuclear energy still accounts for 8% of U.S. electric power generation, but growth has stalled.
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