{
  "id": "co2-ppm-global-monthly",
  "name": "Global Monthly Mean CO2 (ppm)",
  "title": "Global Monthly Mean CO2 (ppm)",
  "description": "564 monthly global mean atmospheric CO2 concentrations (ppm) from NOAA marine-boundary-layer network, 1979+. Source: NOAA GML via datasets/co2-ppm.",
  "category": "environment",
  "source": "https://github.com/datasets/co2-ppm",
  "source_url": "https://github.com/datasets/co2-ppm",
  "updated": "2026-04",
  "record_count": 564,
  "columns": [
    {
      "key": "date",
      "label": "Date",
      "type": "string"
    },
    {
      "key": "decimal_date",
      "label": "Decimal Date",
      "type": "number"
    },
    {
      "key": "average_ppm",
      "label": "Average Ppm",
      "type": "number"
    },
    {
      "key": "trend_ppm",
      "label": "Trend Ppm",
      "type": "number"
    }
  ],
  "rows": [
    {
      "date": "1979-01",
      "decimal_date": 1979.042,
      "average_ppm": 336.56,
      "trend_ppm": 0.11
    },
    {
      "date": "1979-02",
      "decimal_date": 1979.125,
      "average_ppm": 337.29,
      "trend_ppm": 0.09
    },
    {
      "date": "1979-03",
      "decimal_date": 1979.208,
      "average_ppm": 337.88,
      "trend_ppm": 0.11
    },
    {
      "date": "1979-04",
      "decimal_date": 1979.292,
      "average_ppm": 338.32,
      "trend_ppm": 0.13
    },
    {
      "date": "1979-05",
      "decimal_date": 1979.375,
      "average_ppm": 338.26,
      "trend_ppm": 0.04
    },
    {
      "date": "1979-06",
      "decimal_date": 1979.458,
      "average_ppm": 337.39,
      "trend_ppm": 0.18
    },
    {
      "date": "1979-07",
      "decimal_date": 1979.542,
      "average_ppm": 335.57,
      "trend_ppm": 0.24
    },
    {
      "date": "1979-08",
      "decimal_date": 1979.625,
      "average_ppm": 334.37,
      "trend_ppm": 0.26
    },
    {
      "date": "1979-09",
      "decimal_date": 1979.708,
      "average_ppm": 335.02,
      "trend_ppm": 0.23
    },
    {
      "date": "1979-10",
      "decimal_date": 1979.792,
      "average_ppm": 336.36,
      "trend_ppm": 0.26
    },
    {
      "date": "1979-11",
      "decimal_date": 1979.875,
      "average_ppm": 337.36,
      "trend_ppm": 0.19
    },
    {
      "date": "1979-12",
      "decimal_date": 1979.958,
      "average_ppm": 337.89,
      "trend_ppm": 0.14
    },
    {
      "date": "1980-01",
      "decimal_date": 1980.042,
      "average_ppm": 338.57,
      "trend_ppm": 0.13
    },
    {
      "date": "1980-02",
      "decimal_date": 1980.125,
      "average_ppm": 339.26,
      "trend_ppm": 0.09
    },
    {
      "date": "1980-03",
      "decimal_date": 1980.208,
      "average_ppm": 339.6,
      "trend_ppm": 0.08
    },
    {
      "date": "1980-04",
      "decimal_date": 1980.292,
      "average_ppm": 340,
      "trend_ppm": 0.08
    },
    {
      "date": "1980-05",
      "decimal_date": 1980.375,
      "average_ppm": 340.44,
      "trend_ppm": 0.11
    },
    {
      "date": "1980-06",
      "decimal_date": 1980.458,
      "average_ppm": 339.99,
      "trend_ppm": 0.09
    },
    {
      "date": "1980-07",
      "decimal_date": 1980.542,
      "average_ppm": 338.44,
      "trend_ppm": 0.16
    },
    {
      "date": "1980-08",
      "decimal_date": 1980.625,
      "average_ppm": 337.22,
      "trend_ppm": 0.17
    },
    {
      "date": "1980-09",
      "decimal_date": 1980.708,
      "average_ppm": 337.05,
      "trend_ppm": 0.11
    },
    {
      "date": "1980-10",
      "decimal_date": 1980.792,
      "average_ppm": 337.82,
      "trend_ppm": 0.07
    },
    {
      "date": "1980-11",
      "decimal_date": 1980.875,
      "average_ppm": 338.93,
      "trend_ppm": 0.06
    },
    {
      "date": "1980-12",
      "decimal_date": 1980.958,
      "average_ppm": 339.64,
      "trend_ppm": 0.09
    },
    {
      "date": "1981-01",
      "decimal_date": 1981.042,
      "average_ppm": 340.18,
      "trend_ppm": 0.1
    },
    {
      "date": "1981-02",
      "decimal_date": 1981.125,
      "average_ppm": 340.75,
      "trend_ppm": 0.1
    },
    {
      "date": "1981-03",
      "decimal_date": 1981.208,
      "average_ppm": 341.38,
      "trend_ppm": 0.11
    },
    {
      "date": "1981-04",
      "decimal_date": 1981.292,
      "average_ppm": 341.68,
      "trend_ppm": 0.08
    },
    {
      "date": "1981-05",
      "decimal_date": 1981.375,
      "average_ppm": 341.43,
      "trend_ppm": 0.06
    },
    {
      "date": "1981-06",
      "decimal_date": 1981.458,
      "average_ppm": 340.63,
      "trend_ppm": 0.1
    },
    {
      "date": "1981-07",
      "decimal_date": 1981.542,
      "average_ppm": 339.23,
      "trend_ppm": 0.14
    },
    {
      "date": "1981-08",
      "decimal_date": 1981.625,
      "average_ppm": 338.08,
      "trend_ppm": 0.16
    },
    {
      "date": "1981-09",
      "decimal_date": 1981.708,
      "average_ppm": 337.97,
      "trend_ppm": 0.11
    },
    {
      "date": "1981-10",
      "decimal_date": 1981.792,
      "average_ppm": 339.07,
      "trend_ppm": 0.09
    },
    {
      "date": "1981-11",
      "decimal_date": 1981.875,
      "average_ppm": 340.17,
      "trend_ppm": 0.11
    },
    {
      "date": "1981-12",
      "decimal_date": 1981.958,
      "average_ppm": 340.74,
      "trend_ppm": 0.08
    },
    {
      "date": "1982-01",
      "decimal_date": 1982.042,
      "average_ppm": 341.36,
      "trend_ppm": 0.08
    },
    {
      "date": "1982-02",
      "decimal_date": 1982.125,
      "average_ppm": 341.95,
      "trend_ppm": 0.08
    },
    {
      "date": "1982-03",
      "decimal_date": 1982.208,
      "average_ppm": 342.23,
      "trend_ppm": 0.07
    },
    {
      "date": "1982-04",
      "decimal_date": 1982.292,
      "average_ppm": 342.52,
      "trend_ppm": 0.07
    },
    {
      "date": "1982-05",
      "decimal_date": 1982.375,
      "average_ppm": 342.37,
      "trend_ppm": 0.07
    },
    {
      "date": "1982-06",
      "decimal_date": 1982.458,
      "average_ppm": 341.49,
      "trend_ppm": 0.03
    },
    {
      "date": "1982-07",
      "decimal_date": 1982.542,
      "average_ppm": 339.75,
      "trend_ppm": 0.07
    },
    {
      "date": "1982-08",
      "decimal_date": 1982.625,
      "average_ppm": 338.11,
      "trend_ppm": 0.09
    },
    {
      "date": "1982-09",
      "decimal_date": 1982.708,
      "average_ppm": 338.16,
      "trend_ppm": 0.07
    },
    {
      "date": "1982-10",
      "decimal_date": 1982.792,
      "average_ppm": 339.61,
      "trend_ppm": 0.05
    },
    {
      "date": "1982-11",
      "decimal_date": 1982.875,
      "average_ppm": 340.95,
      "trend_ppm": 0.05
    },
    {
      "date": "1982-12",
      "decimal_date": 1982.958,
      "average_ppm": 341.77,
      "trend_ppm": 0.06
    },
    {
      "date": "1983-01",
      "decimal_date": 1983.042,
      "average_ppm": 342.37,
      "trend_ppm": 0.05
    },
    {
      "date": "1983-02",
      "decimal_date": 1983.125,
      "average_ppm": 342.74,
      "trend_ppm": 0.07
    },
    {
      "date": "1983-03",
      "decimal_date": 1983.208,
      "average_ppm": 343.04,
      "trend_ppm": 0.08
    },
    {
      "date": "1983-04",
      "decimal_date": 1983.292,
      "average_ppm": 343.51,
      "trend_ppm": 0.05
    },
    {
      "date": "1983-05",
      "decimal_date": 1983.375,
      "average_ppm": 343.84,
      "trend_ppm": 0.1
    },
    {
      "date": "1983-06",
      "decimal_date": 1983.458,
      "average_ppm": 343.5,
      "trend_ppm": 0.09
    },
    {
      "date": "1983-07",
      "decimal_date": 1983.542,
      "average_ppm": 342.14,
      "trend_ppm": 0.12
    },
    {
      "date": "1983-08",
      "decimal_date": 1983.625,
      "average_ppm": 340.62,
      "trend_ppm": 0.14
    },
    {
      "date": "1983-09",
      "decimal_date": 1983.708,
      "average_ppm": 340.53,
      "trend_ppm": 0.1
    },
    {
      "date": "1983-10",
      "decimal_date": 1983.792,
      "average_ppm": 341.75,
      "trend_ppm": 0.11
    },
    {
      "date": "1983-11",
      "decimal_date": 1983.875,
      "average_ppm": 342.83,
      "trend_ppm": 0.14
    },
    {
      "date": "1983-12",
      "decimal_date": 1983.958,
      "average_ppm": 343.49,
      "trend_ppm": 0.12
    },
    {
      "date": "1984-01",
      "decimal_date": 1984.042,
      "average_ppm": 344.32,
      "trend_ppm": 0.05
    },
    {
      "date": "1984-02",
      "decimal_date": 1984.125,
      "average_ppm": 344.82,
      "trend_ppm": 0.05
    },
    {
      "date": "1984-03",
      "decimal_date": 1984.208,
      "average_ppm": 344.96,
      "trend_ppm": 0.06
    },
    {
      "date": "1984-04",
      "decimal_date": 1984.292,
      "average_ppm": 345.19,
      "trend_ppm": 0.12
    },
    {
      "date": "1984-05",
      "decimal_date": 1984.375,
      "average_ppm": 345.33,
      "trend_ppm": 0.09
    },
    {
      "date": "1984-06",
      "decimal_date": 1984.458,
      "average_ppm": 344.57,
      "trend_ppm": 0.05
    },
    {
      "date": "1984-07",
      "decimal_date": 1984.542,
      "average_ppm": 343.2,
      "trend_ppm": 0.11
    },
    {
      "date": "1984-08",
      "decimal_date": 1984.625,
      "average_ppm": 342.21,
      "trend_ppm": 0.16
    },
    {
      "date": "1984-09",
      "decimal_date": 1984.708,
      "average_ppm": 342.13,
      "trend_ppm": 0.15
    },
    {
      "date": "1984-10",
      "decimal_date": 1984.792,
      "average_ppm": 342.99,
      "trend_ppm": 0.13
    },
    {
      "date": "1984-11",
      "decimal_date": 1984.875,
      "average_ppm": 344.16,
      "trend_ppm": 0.13
    },
    {
      "date": "1984-12",
      "decimal_date": 1984.958,
      "average_ppm": 345,
      "trend_ppm": 0.11
    },
    {
      "date": "1985-01",
      "decimal_date": 1985.042,
      "average_ppm": 345.35,
      "trend_ppm": 0.11
    },
    {
      "date": "1985-02",
      "decimal_date": 1985.125,
      "average_ppm": 345.8,
      "trend_ppm": 0.1
    },
    {
      "date": "1985-03",
      "decimal_date": 1985.208,
      "average_ppm": 346.64,
      "trend_ppm": 0.11
    },
    {
      "date": "1985-04",
      "decimal_date": 1985.292,
      "average_ppm": 346.94,
      "trend_ppm": 0.11
    },
    {
      "date": "1985-05",
      "decimal_date": 1985.375,
      "average_ppm": 346.78,
      "trend_ppm": 0.1
    },
    {
      "date": "1985-06",
      "decimal_date": 1985.458,
      "average_ppm": 346.26,
      "trend_ppm": 0.1
    },
    {
      "date": "1985-07",
      "decimal_date": 1985.542,
      "average_ppm": 344.92,
      "trend_ppm": 0.14
    },
    {
      "date": "1985-08",
      "decimal_date": 1985.625,
      "average_ppm": 343.41,
      "trend_ppm": 0.14
    },
    {
      "date": "1985-09",
      "decimal_date": 1985.708,
      "average_ppm": 343.37,
      "trend_ppm": 0.09
    },
    {
      "date": "1985-10",
      "decimal_date": 1985.792,
      "average_ppm": 344.64,
      "trend_ppm": 0.07
    },
    {
      "date": "1985-11",
      "decimal_date": 1985.875,
      "average_ppm": 345.79,
      "trend_ppm": 0.08
    },
    {
      "date": "1985-12",
      "decimal_date": 1985.958,
      "average_ppm": 346.55,
      "trend_ppm": 0.08
    },
    {
      "date": "1986-01",
      "decimal_date": 1986.042,
      "average_ppm": 347.11,
      "trend_ppm": 0.09
    },
    {
      "date": "1986-02",
      "decimal_date": 1986.125,
      "average_ppm": 347.34,
      "trend_ppm": 0.11
    },
    {
      "date": "1986-03",
      "decimal_date": 1986.208,
      "average_ppm": 347.71,
      "trend_ppm": 0.14
    },
    {
      "date": "1986-04",
      "decimal_date": 1986.292,
      "average_ppm": 348.22,
      "trend_ppm": 0.15
    },
    {
      "date": "1986-05",
      "decimal_date": 1986.375,
      "average_ppm": 348.32,
      "trend_ppm": 0.12
    },
    {
      "date": "1986-06",
      "decimal_date": 1986.458,
      "average_ppm": 347.76,
      "trend_ppm": 0.09
    },
    {
      "date": "1986-07",
      "decimal_date": 1986.542,
      "average_ppm": 346.29,
      "trend_ppm": 0.15
    },
    {
      "date": "1986-08",
      "decimal_date": 1986.625,
      "average_ppm": 344.92,
      "trend_ppm": 0.12
    },
    {
      "date": "1986-09",
      "decimal_date": 1986.708,
      "average_ppm": 344.86,
      "trend_ppm": 0.1
    },
    {
      "date": "1986-10",
      "decimal_date": 1986.792,
      "average_ppm": 346.03,
      "trend_ppm": 0.14
    },
    {
      "date": "1986-11",
      "decimal_date": 1986.875,
      "average_ppm": 347.3,
      "trend_ppm": 0.16
    },
    {
      "date": "1986-12",
      "decimal_date": 1986.958,
      "average_ppm": 347.76,
      "trend_ppm": 0.12
    },
    {
      "date": "1987-01",
      "decimal_date": 1987.042,
      "average_ppm": 348.01,
      "trend_ppm": 0.11
    },
    {
      "date": "1987-02",
      "decimal_date": 1987.125,
      "average_ppm": 348.57,
      "trend_ppm": 0.11
    },
    {
      "date": "1987-03",
      "decimal_date": 1987.208,
      "average_ppm": 349.29,
      "trend_ppm": 0.11
    },
    {
      "date": "1987-04",
      "decimal_date": 1987.292,
      "average_ppm": 349.98,
      "trend_ppm": 0.13
    },
    {
      "date": "1987-05",
      "decimal_date": 1987.375,
      "average_ppm": 350.26,
      "trend_ppm": 0.17
    },
    {
      "date": "1987-06",
      "decimal_date": 1987.458,
      "average_ppm": 349.46,
      "trend_ppm": 0.14
    },
    {
      "date": "1987-07",
      "decimal_date": 1987.542,
      "average_ppm": 347.84,
      "trend_ppm": 0.16
    },
    {
      "date": "1987-08",
      "decimal_date": 1987.625,
      "average_ppm": 346.61,
      "trend_ppm": 0.17
    },
    {
      "date": "1987-09",
      "decimal_date": 1987.708,
      "average_ppm": 346.7,
      "trend_ppm": 0.11
    },
    {
      "date": "1987-10",
      "decimal_date": 1987.792,
      "average_ppm": 347.97,
      "trend_ppm": 0.11
    },
    {
      "date": "1987-11",
      "decimal_date": 1987.875,
      "average_ppm": 349.25,
      "trend_ppm": 0.12
    },
    {
      "date": "1987-12",
      "decimal_date": 1987.958,
      "average_ppm": 350.21,
      "trend_ppm": 0.13
    },
    {
      "date": "1988-01",
      "decimal_date": 1988.042,
      "average_ppm": 350.92,
      "trend_ppm": 0.1
    },
    {
      "date": "1988-02",
      "decimal_date": 1988.125,
      "average_ppm": 351.47,
      "trend_ppm": 0.08
    },
    {
      "date": "1988-03",
      "decimal_date": 1988.208,
      "average_ppm": 351.85,
      "trend_ppm": 0.09
    },
    {
      "date": "1988-04",
      "decimal_date": 1988.292,
      "average_ppm": 352.3,
      "trend_ppm": 0.1
    },
    {
      "date": "1988-05",
      "decimal_date": 1988.375,
      "average_ppm": 352.46,
      "trend_ppm": 0.11
    },
    {
      "date": "1988-06",
      "decimal_date": 1988.458,
      "average_ppm": 351.76,
      "trend_ppm": 0.1
    },
    {
      "date": "1988-07",
      "decimal_date": 1988.542,
      "average_ppm": 350.27,
      "trend_ppm": 0.13
    },
    {
      "date": "1988-08",
      "decimal_date": 1988.625,
      "average_ppm": 349.09,
      "trend_ppm": 0.15
    },
    {
      "date": "1988-09",
      "decimal_date": 1988.708,
      "average_ppm": 349.27,
      "trend_ppm": 0.11
    },
    {
      "date": "1988-10",
      "decimal_date": 1988.792,
      "average_ppm": 350.44,
      "trend_ppm": 0.08
    },
    {
      "date": "1988-11",
      "decimal_date": 1988.875,
      "average_ppm": 351.62,
      "trend_ppm": 0.08
    },
    {
      "date": "1988-12",
      "decimal_date": 1988.958,
      "average_ppm": 352.47,
      "trend_ppm": 0.09
    },
    {
      "date": "1989-01",
      "decimal_date": 1989.042,
      "average_ppm": 353.01,
      "trend_ppm": 0.09
    },
    {
      "date": "1989-02",
      "decimal_date": 1989.125,
      "average_ppm": 353.47,
      "trend_ppm": 0.1
    },
    {
      "date": "1989-03",
      "decimal_date": 1989.208,
      "average_ppm": 354.01,
      "trend_ppm": 0.1
    },
    {
      "date": "1989-04",
      "decimal_date": 1989.292,
      "average_ppm": 354.38,
      "trend_ppm": 0.1
    },
    {
      "date": "1989-05",
      "decimal_date": 1989.375,
      "average_ppm": 354.19,
      "trend_ppm": 0.11
    },
    {
      "date": "1989-06",
      "decimal_date": 1989.458,
      "average_ppm": 353.27,
      "trend_ppm": 0.09
    },
    {
      "date": "1989-07",
      "decimal_date": 1989.542,
      "average_ppm": 351.57,
      "trend_ppm": 0.12
    },
    {
      "date": "1989-08",
      "decimal_date": 1989.625,
      "average_ppm": 350.22,
      "trend_ppm": 0.14
    },
    {
      "date": "1989-09",
      "decimal_date": 1989.708,
      "average_ppm": 350.57,
      "trend_ppm": 0.1
    },
    {
      "date": "1989-10",
      "decimal_date": 1989.792,
      "average_ppm": 351.86,
      "trend_ppm": 0.11
    },
    {
      "date": "1989-11",
      "decimal_date": 1989.875,
      "average_ppm": 353.04,
      "trend_ppm": 0.1
    },
    {
      "date": "1989-12",
      "decimal_date": 1989.958,
      "average_ppm": 353.91,
      "trend_ppm": 0.1
    },
    {
      "date": "1990-01",
      "decimal_date": 1990.042,
      "average_ppm": 354.48,
      "trend_ppm": 0.13
    },
    {
      "date": "1990-02",
      "decimal_date": 1990.125,
      "average_ppm": 354.88,
      "trend_ppm": 0.15
    },
    {
      "date": "1990-03",
      "decimal_date": 1990.208,
      "average_ppm": 355.2,
      "trend_ppm": 0.13
    },
    {
      "date": "1990-04",
      "decimal_date": 1990.292,
      "average_ppm": 355.51,
      "trend_ppm": 0.1
    },
    {
      "date": "1990-05",
      "decimal_date": 1990.375,
      "average_ppm": 355.41,
      "trend_ppm": 0.08
    },
    {
      "date": "1990-06",
      "decimal_date": 1990.458,
      "average_ppm": 354.33,
      "trend_ppm": 0.09
    },
    {
      "date": "1990-07",
      "decimal_date": 1990.542,
      "average_ppm": 352.71,
      "trend_ppm": 0.11
    },
    {
      "date": "1990-08",
      "decimal_date": 1990.625,
      "average_ppm": 351.58,
      "trend_ppm": 0.12
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    {
      "date": "2023-02",
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    {
      "date": "2023-03",
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    {
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    {
      "date": "2024-01",
      "decimal_date": 2024.042,
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    },
    {
      "date": "2024-02",
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    {
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    {
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    {
      "date": "2024-09",
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    {
      "date": "2024-10",
      "decimal_date": 2024.792,
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    {
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      "decimal_date": 2024.875,
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    {
      "date": "2024-12",
      "decimal_date": 2024.958,
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      "trend_ppm": 0.13
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    {
      "date": "2025-01",
      "decimal_date": 2025.042,
      "average_ppm": 426.04,
      "trend_ppm": 0.11
    },
    {
      "date": "2025-02",
      "decimal_date": 2025.125,
      "average_ppm": 426.45,
      "trend_ppm": 0.1
    },
    {
      "date": "2025-03",
      "decimal_date": 2025.208,
      "average_ppm": 426.58,
      "trend_ppm": 0.1
    },
    {
      "date": "2025-04",
      "decimal_date": 2025.292,
      "average_ppm": 426.93,
      "trend_ppm": 0.1
    },
    {
      "date": "2025-05",
      "decimal_date": 2025.375,
      "average_ppm": 426.9,
      "trend_ppm": 0.1
    },
    {
      "date": "2025-06",
      "decimal_date": 2025.458,
      "average_ppm": 425.86,
      "trend_ppm": 0.1
    },
    {
      "date": "2025-07",
      "decimal_date": 2025.542,
      "average_ppm": 424.22,
      "trend_ppm": 0.1
    },
    {
      "date": "2025-08",
      "decimal_date": 2025.625,
      "average_ppm": 423.04,
      "trend_ppm": 0.1
    },
    {
      "date": "2025-09",
      "decimal_date": 2025.708,
      "average_ppm": 423.15,
      "trend_ppm": 0.1
    },
    {
      "date": "2025-10",
      "decimal_date": 2025.792,
      "average_ppm": 424.72,
      "trend_ppm": 0.1
    },
    {
      "date": "2025-11",
      "decimal_date": 2025.875,
      "average_ppm": 426.47,
      "trend_ppm": 0.1
    },
    {
      "date": "2025-12",
      "decimal_date": 2025.958,
      "average_ppm": 427.35,
      "trend_ppm": 0.1
    }
  ],
  "meta": {
    "title": "Global Monthly Mean CO2 (ppm) - Free Download",
    "description": "564 monthly global mean atmospheric CO2 concentrations (ppm) from NOAA marine-boundary-layer network, 1979+. Source: NOAA GML via datasets/co2-ppm. Contains 564 records. Download in Excel, CSV, PDF formats.",
    "seo_title": "Global Monthly Mean CO2 (ppm) | ListBase",
    "seo_description": "Download Global Monthly Mean CO2 (ppm) — 564 records. Available in Excel, CSV, PDF formats.",
    "key_takeaways": [
      "Contains 564 records / 4 fields",
      "Available for free download in Excel, CSV, and PDF formats",
      "Data sourced from: https://github.com/datasets/co2-ppm"
    ]
  }
}