The wide range of carbon intensities is due to the life cycle emissions methodology of the LCFS, variations in feedstock types, origin, raw material production processing efficiencies, and transportation, all of which contribute to an individual producer’s fuel pathway CI.

Data source: Carbon factors provided by the U.S. Environmental Protection Agency, Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2022, Tables A-20, A-25, A-32, and A-226 a Excludes fuel ethanol blended into motor gasoline.

What are Carbon Intensity Scores? Carbon intensity scores measure the total greenhouse gas (GHG) emissions produced per unit of fuel, typically expressed as grams of CO2 equivalent per megajoule (gCO2e/MJ).

Feb 7, 2025 · The chart below shows fuel pathways EPA has evaluated and published numerical GHG results for, in kilograms of carbon dioxide-equivalent emissions per million British thermal units of finished fuel (kgCO 2 e/mmBtu).

Feb 6, 2024 · Beyond existing supply chains, carbon intensity is also the natural language of what will be a highly diversified energy and technology mix of the future. Instead of policy or investments focusing on generic fuel or vehicle categories, opportunities can be judged on objective environmental impact.

Emission intensities are used to derive estimates of air pollutant or greenhouse gas emissions based on the amount of fuel combusted, the number of animals in animal husbandry, on industrial production levels, distances traveled or similar activity data.

In this article we look at the breakdown of CO 2 emissions by fuel type, looking at the largest emitters of the past; the largest emitters today; and how these compare when we look at per capita adjustments.

Oct 9, 2016 · The following table shows full fuel cycle carbon intensity (CI) scores for representative fuel pathways calculated using CA-GREET 2.0.

These reports describe staff’s methodology for calculating fuel carbon intensity (CI) with the use of life cycle greenhouse gas (GHG) emissions models. CI is a measure of the GHG emissions per unit of energy of fuel and is measured in units of grams of carbon dioxide (CO2) equivalent emissions per megajoule of fuel energy (gCO2e/MJ).

Apr 25, 2024 · This report highlights notable trends in energy-related carbon dioxide (CO 2) emissions in the United States in 2023, based on preliminary data. U.S. energy-related CO 2 emissions decreased slightly in 2023 compared to 2022.