{
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    "url": "https://svs.gsfc.nasa.gov/5126/",
    "page_type": "Visualization",
    "title": "NOAA Annual Greenhouse Gas Index",
    "description": "This visualization of the NOAA Annual Greenhouse Gas Index shows the relative warming contribution from various greenhouse gasses (1979-2023). The donut chart shows 2023 AGGI data.",
    "release_date": "2023-07-07T00:00:00-04:00",
    "update_date": "2025-04-01T09:34:27.086916-04:00",
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        "Visualizations by": [
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                "name": "Mark SubbaRao",
                "employer": "NASA/GSFC"
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            {
                "name": "Lesley Ott",
                "employer": "NASA/GSFC"
            }
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    "progress": "Complete",
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            "description": "This visualization of the NOAA Annual Greenhouse Gas Index shows the relative warming contribution from various greenhouse gasses (1979-2022). The donut chart shows 2022 AGGI data.",
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            "description": "The <a href=\"https://gml.noaa.gov/aggi/\">NOAA Annual Greenhouse Gas Index (AGGI)</a> tracks the increasing amount of heat being added to the atmosphere by human-related greenhouse gas (GHG) emissions. It is based on the highest quality measurements of GHGs in the atmosphere from sites around the world. <br><br>This visualization contains data from 1979-2023. The quantity plotted is the global radiative forcing, which is a measure of how much each component is warming the Earth. The 'other' category includes hydrofluorocarbons (HFCs), Chlorofluorocarbons (CFCs), and hydrochlorofluorocarbons (HCFCs). The donut chart shows the 2023 data. <br><br>This visualization, aimed at showing the relative contributions of each gas, leaves off the scale and units. In 2023 the total radiative forcing was 3.5 Watts per meter squared.",
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            "people": [
                {
                    "name": "Laurence Schuler",
                    "employer": "ADNET Systems, Inc."
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                {
                    "name": "Ian Jones",
                    "employer": "ADNET Systems, Inc."
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    "keywords": [
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        "Atmospheric Chemistry/Nitrogen Compounds",
        "Carbon Dioxide",
        "Climate",
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        "Earth Information Center",
        "Earth Science",
        "Greenhouse Gases",
        "Hyperwall",
        "Methane",
        "Nitrous Oxide"
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    "sources": [],
    "products": [],
    "newer_versions": [],
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    "alternate_versions": []
}