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  • Greenhouse gas | Definition, Emissions, Greenhouse Effect | Britannica
    greenhouse gas, any gas that has the property of absorbing infrared radiation (net heat energy) emitted from Earth’s surface and reradiating it back to Earth’s surface, thus contributing to the greenhouse effect Carbon dioxide, methane, and water vapour are the most important greenhouse gases
  • Overview of Greenhouse Gases | US EPA
    Gases that trap heat in the atmosphere are called greenhouse gases This section provides information on emissions and removals of the main greenhouse gases to and from the atmosphere Click on a greenhouse gas below to learn about its emissions in more detail
  • What Are Greenhouse Gases and Why Do They Matter
    Greenhouse gases (GHGs) are a category of gases that absorb heat energy emitted from the planet's surface and they remain in Earth's atmosphere for a long time (from decades to centuries)
  • Greenhouse gas - Wikipedia
    Greenhouse gases trap some of the heat that results when sunlight heats the Earth's surface Three important greenhouse gases are shown symbolically in this image: carbon dioxide, water vapor, and methane Physical drivers of global warming that has happened so far
  • Greenhouse Gases – Definition, Types, and Environmental Impact
    Greenhouse gases trap heat in Earth’s atmosphere and drive climate change Discover their properties, sources, lifetimes, and effects
  • Main Greenhouse Gases - Center for Climate and Energy Solutions
    The most common greenhouse gases are (in order of atmospheric concentration) water vapor (H2O), carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and a suite of halogen-bearing gases (like fluorocarbons) that are derived from industrial activities
  • Greenhouse Gas - an overview | ScienceDirect Topics
    Greenhouse gases are defined as gases that absorb and emit infrared radiation, which traps heat in the Earth's atmosphere Key greenhouse gases include water vapor, methane, carbon dioxide, nitrous oxide, ozone, and chlorofluorocarbons, with excess amounts contributing to global warming How useful is this definition?
  • Greenhouse gases - U. S. Energy Information Administration (EIA)
    What are greenhouse gases? Many of the chemical compounds in the earth's atmosphere act as greenhouse gases When sunlight strikes the earth's surface, some of it radiates back toward space as infrared radiation (heat)


















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