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
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)
GHGs Descriptions Sources in California | California Air . . . CO 2 is an important compound for plant and animal life, as part of the carbon cycle, and as a greenhouse gas (GHG) CO 2 is the primary GHG emitted in California Transportation is the single largest source of CO 2 in California; which is primarily comprised of on-road travel
Welcome — U. S. Greenhouse Gas Center This multi-agency effort consolidates greenhouse gas information from observations and models to create a unified source for U S government and other datasets The goal of the US GHG Center is to provide decision makers with one location for data and analysis
Greenhouse gas | Definition, Emissions, Greenhouse Effect . . . 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
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