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Carbon dioxide is a chemical compound with the chemical formula CO2. It is made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature, and as the source of available carbon in the carbon cycle, atmospheric CO 2 is the primary carbon source for life on Earth.
May 15, 2024 · Learn about carbon dioxide, a colourless gas that is a major greenhouse gas and a product of combustion, fermentation, and respiration. Find out how it is used industrially, chemically, and biologically, and how it affects the atmosphere and climate.
- The Editors of Encyclopaedia Britannica
Apr 9, 2024 · Learn how human activities have increased carbon dioxide levels in the atmosphere, causing global warming and ocean acidification. See the latest data, trends, and impacts of carbon dioxide on Earth's climate system.
Carbon dioxide (CO 2) is an important heat-trapping gas, also known as a greenhouse gas, that comes from the extraction and burning of fossil fuels (such as coal, oil, and natural gas), from wildfires, and natural processes like volcanic eruptions.
Learn about the properties, sources, and effects of carbon dioxide, a colorless and non-flammable gas that is an important greenhouse gas. Find out how carbon dioxide cycles through Earth's environment and how it has varied through history.
Feb 25, 2021 · Learn how carbon dioxide and other greenhouse gases absorb infrared energy and trap heat in the atmosphere. Find out why CO2 levels matter and how they affect Earth's climate.
Of the greenhouse gases, carbon dioxide (CO 2) is the most significant. Natural sources of atmospheric CO 2 include outgassing from volcanoes, the combustion and natural decay of organic matter, and respiration by aerobic (oxygen-using) organisms.
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