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- 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 Gas (GHG) Emissions and Removals | US EPA
Learn about the most important GHGs Where do GHGs come from? Learn about the human activities that add GHGs to our atmosphere Find out more about global greenhouse gas emissions and trends Learn about corporate GHG management and use the Emission Factors Hub and Corporate GHG Emission Calculator
- 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 Resources Board
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
- 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
- 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 gases - U. S. Energy Information Administration (EIA)
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)
- Greenhouse gases - World Meteorological Organization
Greenhouse gases (GHGs) in the atmosphere trap infrared radiation from the Earth, keeping it warm, this is known as the greenhouse effect GHG emissions from human activities provided the majority contribution towards global warming of 1 1 °C
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