Alaska CO₂ Emissions
Alaska emitted 44 million metric tons of energy-related CO₂ in 2024, 0.9% of the US total. That ranks it 36th among the 50 states and the District of Columbia, at 59.7 metric tons per person.
Data year 2024 · Source: U.S. Energy Information Administration, State Energy Data System (June 2026)
How much CO₂ does Alaska emit?
Alaska produced 44 million metric tons of carbon dioxide from burning fossil fuels in 2024. The United States as a whole emitted 4.78 billion metric tons, so Alaska accounts for 0.9% of the national total.
Per person, that is 59.7 metric tons, 4.2 times the US average of 14.1 metric tons. On that measure Alaska ranks 3rd highest of 51.
CO₂ emissions in Alaska since 1990
Energy-related emissions in Alaska have risen by 29% since 1990, from 34 million metric tons to 44 million metric tons. Compared with 2005, the baseline year for many US climate targets and marked on the chart, they have fallen by 8%. Emissions peaked in 2005 at 48 million metric tons and are now 8% below that level.
Emissions by sector
Industrial is the largest source of energy-related CO₂ in Alaska, at about 50% of the total, followed by transportation at 34% and electric power at 7%.
Emissions by fuel
Natural gas produces about 54% of the state’s energy-related CO₂, petroleum 42% and coal 4%.
How Alaska compares with other states
These are the states closest to Alaska in the 2024 ranking by total emissions. See the full ranking of all states.
| # | State | Total (Mt) | Share of US | Per person (t) |
|---|---|---|---|---|
| 34 | Wyoming | 50.00 | 1.0% | 85.2 |
| 35 | Maryland | 48.77 | 1.0% | 7.8 |
| 36 | Alaska | 44.01 | 0.9% | 59.7 |
| 37 | Nebraska | 43.54 | 0.9% | 21.7 |
| 38 | New Mexico | 41.63 | 0.9% | 19.6 |
Frequently asked questions
How much CO₂ does Alaska emit per year?
Alaska emitted 44 million metric tons of energy-related CO₂ in 2024, which is 0.9% of the US total of 4.78 billion metric tons.
What are the CO₂ emissions per person in Alaska?
About 59.7 metric tons per person in 2024, 4.2 times the US average of 14.1 metric tons. That ranks 3rd highest of 51.
Have emissions in Alaska fallen since 2005?
They have fallen by 8% since 2005 and risen by 29% since 1990. Emissions peaked in 2005 at 48 million metric tons and are now 8% below that level.
What is the biggest source of CO₂ in Alaska?
Industrial is the largest sector, at about 50% of energy-related emissions, followed by transportation at 34%. By fuel, natural gas accounts for 54%.
About the data. Figures are energy-related carbon dioxide emissions: CO₂ from burning coal, natural gas and petroleum, in million metric tons. Emissions from power plants are counted in the state where the electricity is generated, not where it is used. Other greenhouse gases and non-energy sources such as agriculture are not included.
Source: U.S. Energy Information Administration, State Energy Data System, released June 26, 2026. Latest year available: 2024.
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