About 31,100 results
Open links in new tab
  1. 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, …

  2. What Are Greenhouse Gases and Why Do They Matter

    Oct 12, 2022 · 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 …

  3. Overview of Greenhouse Gases | US EPA

    Dec 29, 2025 · 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 …

  4. Greenhouse gas | Definition, Emissions, & Greenhouse Effect

    Jan 16, 2026 · 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 …

  5. 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 …

  6. Greenhouse gases' effect on climate - U.S. Energy Information ...

    Jun 18, 2024 · Emissions of several important greenhouse gases that result from human activity have increased substantially since large-scale industrialization began in the mid-1800s. Most …

  7. Greenhouse Gases – Definition, Types, and Environmental Impact

    Oct 1, 2025 · Greenhouse gases (GHGs) are atmospheric gases that absorb and re-emit infrared radiation (heat), warming Earth’s surface and lower atmosphere. Without these gases, Earth …

  8. Greenhouse Gases - MIT Climate Portal

    Greenhouse gases are gases—like carbon dioxide (CO 2), methane, and nitrous oxide—that keep the Earth warmer than it would be without them. The reason they warm the Earth has to do …

  9. Earth.gov

    Dec 18, 2025 · Greenhouse gases (GHGs) refers to a suite of gases, including carbon dioxide and methane, found in Earth's atmosphere that naturally trap heat and maintain Earth's global …

  10. Greenhouse Gases Factsheet - Center for Sustainable Systems

    The greenhouse effect is a natural phenomenon that insulates the Earth from the cold of space. As solar radiation reaches the Earth, it is absorbed and re-emitted as infrared energy.