Louisiana CO₂ Emissions
Louisiana emitted 187 million metric tons of energy-related CO₂ in 2024, 3.9% of the US total. That ranks it 5th among the 50 states and the District of Columbia, at 40.5 metric tons per person.
Data year 2024 · Source: U.S. Energy Information Administration, State Energy Data System (June 2026)
How much CO₂ does Louisiana emit?
Louisiana produced 187 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 Louisiana accounts for 3.9% of the national total.
Per person, that is 40.5 metric tons, 2.9 times the US average of 14.1 metric tons. On that measure Louisiana ranks 5th highest of 51.
CO₂ emissions in Louisiana since 1990
Energy-related emissions in Louisiana have fallen by 3% since 1990, from 193 million metric tons to 187 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 1997 at 222 million metric tons and are now 16% below that level.
Emissions by sector
Industrial is the largest source of energy-related CO₂ in Louisiana, at about 59% of the total, followed by transportation at 25% and electric power at 14%.
Emissions by fuel
Natural gas produces about 59% of the state’s energy-related CO₂, petroleum 38% and coal 2%.
How Louisiana compares with other states
These are the states closest to Louisiana in the 2024 ranking by total emissions. See the full ranking of all states.
| # | State | Total (Mt) | Share of US | Per person (t) |
|---|---|---|---|---|
| 3 | Florida | 230.85 | 4.8% | 9.9 |
| 4 | Pennsylvania | 201.57 | 4.2% | 15.5 |
| 5 | Louisiana | 186.89 | 3.9% | 40.5 |
| 6 | Ohio | 186.34 | 3.9% | 15.7 |
| 7 | Illinois | 163.98 | 3.4% | 12.9 |
Frequently asked questions
How much CO₂ does Louisiana emit per year?
Louisiana emitted 187 million metric tons of energy-related CO₂ in 2024, which is 3.9% of the US total of 4.78 billion metric tons.
What are the CO₂ emissions per person in Louisiana?
About 40.5 metric tons per person in 2024, 2.9 times the US average of 14.1 metric tons. That ranks 5th highest of 51.
Have emissions in Louisiana fallen since 2005?
They have fallen by 8% since 2005 and fallen by 3% since 1990. Emissions peaked in 1997 at 222 million metric tons and are now 16% below that level.
What is the biggest source of CO₂ in Louisiana?
Industrial is the largest sector, at about 59% of energy-related emissions, followed by transportation at 25%. By fuel, natural gas accounts for 59%.
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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