Energy In Brief Articles

What are greenhouse gases and how much are emitted by the United States?

Greenhouse gases trap heat from the sun and warm the planet's surface. Of U.S. greenhouse gas emissions, 87% are related to energy consumption. Since 1990, greenhouse gas emissions in the United States have grown by about 1% per year.

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Energy and the Environment Explained

Greenhouse Gases' Effect on the Climate

Levels of several important greenhouse gases have increased by about 40% since large-scale industrialization began around 150 years ago. During the past 20 years, about three-quarters of human-caused emissions came from burning fossil fuels. Concentrations of carbon dioxide in the atmosphere are naturally regulated by numerous processes collectively known as the "carbon cycle."

Where Greenhouse Gases Come From

In the United States, greenhouse gas emissions come primarily from the burning of fossil fuels in energy use. Energy use is largely driven by economic growth with short-term fluctuations in its growth rate created by weather patterns affecting heating and cooling needs. Energy use is also driven by changes in the fuel used in electricity generation.

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Monthly Energy Review report cover imageMonthly Energy Review,
Table 12

Released August 27, 2014

A report of recent energy statistics including carbon dioxide emissions from energy consumption.

Monthly Energy Review report cover imageState-Level Energy-Related Carbon Dioxide Emissions, 2000-2011

Released August 21, 2014

This analysis examines some of the factors that influence state-level carbon dioxide emissions from the consumption of fossil fuels. These factors include: the fuel mix—especially in the generation of electricity; the state climate; the population density of the state; the industrial makeup of the state and whether the state is a net exporter or importer of electricity.

 Short-Term Energy Outlook

Released August 12, 2014 | Next Release: September 9, 2014

EIA's monthly energy projections through 2015. Includes oil supply and consumption projections and price projections for crude oil, gasoline, diesel, and heating oil. The Market Prices and Uncertainty Report is a regular monthly supplement to the Short-Term Energy Outlook.

Annual Energy Outlook 2014 cover Annual Energy Outlook 2014

Released May 7, 2014 | Next Early Release: December 2014

Projections in the Annual Energy Outlook 2014 (AEO2014) Reference case focus on the factors that shape U.S. energy markets through 2040.