However, the completed report was released as a result of a Freedom of Information Act request submitted by the Environmental Defense Fund, shedding light on the situation.
The U.S. EPA is required to publish a report about the country’s sources of climate-changing pollution each year by April 15.
This year, that didn’t happen. But the completed report was recently made public as the result of a Freedom of Information Act request submitted by the Environmental Defense Fund.
U.S. Greenhouse Gas Inventory Report provides granular detail on U.S. emissions in 2023.
The latest U.S. Greenhouse Gas Inventory Report provides detailed information on U.S. emissions in 2023.
- U.S. emissions fell by 2.3% in 2023, with a reduction of 147 million metric tons, or MMT, of reduced carbon dioxide-equivalent greenhouse gases.
- A 2.3% decrease in emissions was observed across the United States, with 164 MMT of reduced emissions attributed to the decline in carbon pollution from coal.
A decline in U.S. coal consumption accounted for the bulk of the reduction in emissions in 2023.
A 2.3% decline in U.S. coal consumption accounted for a reduction of 164 MMT in carbon pollution.
Higher carbon emissions from natural gas offset some of that coal decline, increasing by 1%, or a bit under 18 MMT.
Annual U.S. electric power generation and associated greenhouse gas emissions.
A graph illustrating the U.S. electric power generation and associated greenhouse gas emissions is available, showing that carbon dioxide emissions rose by 1% in 2023.
However, the percentage of greenhouse gas emissions from different sectors has been declining over the past year.
- Carbon dioxide was responsible for nearly four-fifths of U.S. greenhouse gas emissions in 2023.
- Methane accounted for 11% of U.S. greenhouse gas emissions in 2023.
Carbon dioxide emissions by economic sector.
A graph illustrates the carbon dioxide emissions by economic sector, showing the largest share of emissions in the power sector.
Agricultural activities and greenhouse gas emissions.
Approximately 10% of U.S. greenhouse gas emissions were associated with agricultural activities.
Nearly all of these emissions were linked to the use of synthetic fertilizers.
Nitrous oxide emissions from synthetic fertilizers were found to be the third-largest contributor to U.S. greenhouse gas emissions.
Nitrous oxide has a long lifespan and is 265 times more potent than carbon dioxide at trapping heat.
Forests and agriculture are important carbon sinks.
Trees absorb a significant amount of annual U.S. carbon pollution, and forests account for 15% of all emissions.
A 2023 report by the think tank Resources for the Future concluded that avoiding a significant reduction in the amount of carbon naturally absorbed by U.S. forests would require major sustained efforts to plant more trees and expand the nation’s forests.
Methane emissions.
Methane is a potent greenhouse gas with a long lifespan.
Agricultural activities were a major source of methane emissions in 2023.
Methane is responsible for about 11% of U.S. greenhouse gas emissions.
The U.S. has made slow progress in reducing methane emissions, with a 23% decrease in 2023 compared to 1990.
Agricultural sources of methane emissions.
The main sources of U.S. methane emissions were:
- Animal agriculture (about one-third of methane emissions)
- Leakage from natural gas systems (about 22% of methane emissions)
- Landfills (about 17% of methane emissions)
The U.S. is making slow progress at curbing its climate pollution.
The country has been steadily reducing greenhouse gas emissions over the past decade, with the U.S. emissions declining by 1-1.5% per year.
A continuation of that trend would leave the U.S. about halfway short of its Paris commitment by 2030.
However, an estimated 1.7% increase in demand for power in 2024 could offset some of the progress made in 2030.
Electrification of buildings and vehicles could also contribute to increased energy consumption and emissions.
The U.S. can still achieve its climate goals, but challenges ahead.
Despite the progress made, the U.S. still faces significant challenges in reducing greenhouse gas emissions.
Rollbacks of pollution regulations and clean energy policies could hinder progress.
Additional efforts are needed to achieve the country’s climate goals.
There are ways to improve carbon sequestration from agriculture and forestry.
Various methods can improve carbon sequestration from agriculture and forestry, including:
-
Reforestation and afforestation programs: Encouraging the planting of new trees to expand forests.
-
Agroforestry systems: Integrating trees into agricultural landscapes to promote sustainable land use.
-
Agricultural practices that reduce synthetic fertilizer use: Implementing methods to reduce the use of synthetic fertilizers in agriculture.
-
Forest conservation and restoration efforts: Protecting and restoring forests to maintain their carbon sink functions.
Conclusion
While the U.S.
