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Northern America

United States

The United States emitted about 4.9 billion tonnes of CO₂ from fossil fuels and industry in 2024, 12.7% of the world total, making it the 2nd largest emitter. About 14.2 tonnes per person per year, 3 times the world average of 4.7 tonnes.

CO₂ in 2024
4,904Mt

12.7% of the world · 2nd largest

Per person
14.2t

World average 4.7 t

Change since 2005
−20%

−4% since 1990

Total since 1850
434.9bn t

23.5% of all CO₂ ever emitted

Renewable electricity
26%

World 34% (2025)

Annual CO₂ emissions

million tonnes, fossil fuels and industry
Show the data as a table
YearCO₂ (Mt)
20244,904.12
20234,918.41
20225,055.40
20215,020.11
20204,689.95
20195,235.91
20185,361.24
20175,195.42
20165,245.36
20155,368.50
20145,531.39
20135,473.44
20125,331.47
20115,538.97
20105,669.25
20095,486.10
20085,919.22
20076,121.54
20066,045.33
20056,126.90
20046,111.55
20036,006.44
20025,947.82
20015,903.56
20006,023.16
19995,800.28
19985,736.36
19975,673.14
19965,601.09
19955,425.84
19945,361.86
19935,279.52
19925,178.77
19915,076.41
19905,131.76

Per person vs the world

tonnes of CO₂
  • World average
  • United States

Renewable share of electricity

%
  • World
  • United States

Where the United States's electricity came from, 2025

  • Coal 16.3%
  • Gas 40.0%
  • Oil 0.7%
  • Nuclear 17.4%
  • Hydro 5.3%
  • Wind 10.3%
  • Solar 8.6%
  • Bioenergy & other 1.4%

Source: Global Carbon Budget and Ember via Our World in Data ·

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About the United States's emissions

How much CO₂ does the United States emit?

The United States emitted about 4.9 billion tonnes of CO₂ from fossil fuels and industry in 2024, 12.7% of the world total, making it the 2nd largest emitter.

What are the United States's CO₂ emissions per person?

About 14.2 tonnes per person per year, 3 times the world average of 4.7 tonnes.

Are the United States's emissions going down?

Yes. CO₂ emissions in 2024 were −20% compared with 2005 and −4% compared with 1990.

How much of the United States's electricity is renewable?

25.6% in 2025, from hydro, wind, solar and bioenergy, against a world average of 33.8%.