AVERAGE CARBON FOOTPRINT DRIVERS

Tighter standards for fuel economy and emissions, along with greater use of electric vehicles, are projected to reduce emissions moderately over the next decade.The use of motor vehicles has expanded with economic growth, but the average fuel economy of new light-duty vehicles (cars and light-duty trucks, including sport utility vehicles, crossover utility vehicles, minivans, and pickup trucks) rose from 20 miles per gallon in 2005 to 25 miles per gallon in 2021.

CO 2 emissions have declined since 2005-despite an increase in travel by car and truck-because vehicles have become more efficient.Personal vehicles and commercial trucks (the predominant forms of passenger and freight transportation) averaged more CO 2 emissions per passenger-mile or ton-mile than most other modes of transportation. Motor vehicles accounted for 83 percent of CO 2 emissions from transportation in 2019. Most emissions in the transportation sector come from cars and trucks.Demand for transportation is much less sensitive to price changes than is demand for electric power, and people have had few cost-effective alternatives to motor fuels. Reducing emissions from transportation has been difficult because of the value that people place on transportation and the dominance of a single fuel source- petroleum.The decline in emissions from transportation has contributed to a drop of about 20 percent in total CO 2 emissions in the United States since 2005 most of that overall reduction has come from the electric power sector. In 2021, CO 2 emissions in the transportation sector were 6 percent less than they were in 2005.In this report, the Congressional Budget Office provides an overview of CO 2 emissions in the transportation sector, describing the sources of and trends in such emissions and projecting their future path. Emissions from transportation surpassed emissions from the electric power sector five years ago and now constitute two-fifths of domestic emissions from burning fossil fuels. Production-based emissions: annual carbon dioxide emissions in metric tons per capita įor a description of this method of greenhouse gas emissions accounting, see Greenhouse gas inventory § Production-based_accounting.The largest source of emissions of carbon dioxide (CO 2, the most common greenhouse gas) in the United States is the transportation sector.

AVERAGE CARBON FOOTPRINT DRIVERS

A study of a global sample of twelve countries provide estimates for COĢ emissions since 1800 and explores the long-run drivers of carbon dioxide emissions by decomposing changes in carbon emissions into population, income, technological and energy mix changes. This is particularly so in agricultural economies.Ĭarbon dioxide emissions are also known for earlier periods. For a more complete idea of how a country influences climate change, gases such as methane and nitrous oxide should be taken into account. As it takes into account the emissions embodied in international trade, it is thus also known as trade-adjusted emissions accounting.Ĭarbon dioxide is the most important, though not the only anthropogenic greenhouse gas. imports, while it excludes emissions from the production of goods and services consumed abroad, i.e. In addition to the emissions from goods and services produced locally, consumption-based accounting also includes the emissions from the consumption of goods and services produced abroad, i.e. The second section provides data regarding emissions based on consumption of goods and services in each country. Emissions from international shipping or bunker fuels are also not included in national figures, which can make a significant difference for small countries with important ports. It provides data regarding carbon dioxide emissions from the burning of fossil fuels and cement manufacture but not emissions from land-use, land-use change and forestry (which includes deforestation). The first section is devoted to emissions based on the production of goods and services within each country (also known as territorial-based emissions). This is a list of countries by carbon dioxide emissions per capita per year. 2020 Worldwide CO2 emissions (by region, per capita) variwide diagram CO₂ emissions per capita (production-based), 2017 ( Our World in Data). Annual production-based CO 2 emissions per capita from 1900 to 2017, globally and for each country.

Average carbon footprint