page_title: Greenhouse gas monitoring
hierarchical_section_title: Greenhouse gas monitoring
caption_attribution_description: English: The graphs show the average mole fraction (or concentration) of these trace gases in the global atmosphere over time. These global averages are derived from flask measurements at multiple remote sites throughout the world including the Mauna Loa Observatory in Hawaii.
context_page_description: Greenhouse gas monitoring is the direct measurement of greenhouse gas emissions and levels. There are several different methods of measuring carbon dioxide concentrations in the atmosphere, including infrared analyzing and manometry. Methane and nitrous oxide are measured by other instruments. Greenhouse gases are measured by satellite monitoring such as the Orbiting Carbon Observatory and networks of ground stations such as the Integrated Carbon Observation System.
context_section_description: Greenhouse gas monitoring is the direct measurement of greenhouse gas emissions and levels.  There are several different methods of measuring carbon dioxide concentrations in the atmosphere, including infrared analyzing and manometry. Methane and nitrous oxide are measured by other instruments. Greenhouse gases are measured by satellite monitoring such as the Orbiting Carbon Observatory and networks of ground stations such as the Integrated Carbon Observation System.
caption: Concentrations in ppm of the major greenhouse gases between 1978 and 2010.
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