Policy and Legal

Carbon dioxide emissions decreased in every state in the U.S. between 2005 and 2023, according to recently released data from the U.S. Energy Information Administration.

What’s going on: Per capita emissions from primary energy consumption declined in those 18 years, and total energy-related carbon dioxide emissions in the U.S. fell 20%.

• Meanwhile, the U.S. population grew 14% in that time, “leading to a 30% decrease in per capita [carbon dioxide] emissions.”

Why it happened: “[E]missions across the country primarily declined because less coal was burned in the electric power sector. Increased electricity generation from natural gas, which releases about half as many [carbon dioxide] emissions per unit of energy when combusted as coal, and from non-[carbon dioxide]-emitting wind and solar generation offset the decrease in coal generation.”

Zoom in: Maryland led the U.S. in the decline, with a 49% drop, followed by Washington, D.C. (-48%), Georgia (-45%), Delaware (-43%) and North Carolina (-42%).