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Atmospheric CO₂ at Mauna Loa (annual mean)
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67 rows
| Year / date | CO₂ (ppm) (ppm) |
|---|---|
| 1959 | 315.98 |
| 1960 | 316.91 |
| 1961 | 317.64 |
| 1962 | 318.45 |
| 1963 | 318.99 |
| 1964 | 319.62 |
| 1965 | 320.04 |
| 1966 | 321.37 |
| 1967 | 322.18 |
| 1968 | 323.05 |
| 1969 | 324.62 |
| 1970 | 325.68 |
| 1971 | 326.32 |
| 1972 | 327.46 |
| 1973 | 329.68 |
| 1974 | 330.19 |
| 1975 | 331.13 |
| 1976 | 332.03 |
| 1977 | 333.84 |
| 1978 | 335.41 |
| 1979 | 336.84 |
| 1980 | 338.76 |
| 1981 | 340.12 |
| 1982 | 341.48 |
| 1983 | 343.15 |
| 1984 | 344.87 |
| 1985 | 346.35 |
| 1986 | 347.61 |
| 1987 | 349.31 |
| 1988 | 351.69 |
| 1989 | 353.2 |
| 1990 | 354.45 |
| 1991 | 355.7 |
| 1992 | 356.54 |
| 1993 | 357.21 |
| 1994 | 358.96 |
| 1995 | 360.97 |
| 1996 | 362.74 |
| 1997 | 363.88 |
| 1998 | 366.84 |
| 1999 | 368.54 |
| 2000 | 369.71 |
| 2001 | 371.32 |
| 2002 | 373.45 |
| 2003 | 375.98 |
| 2004 | 377.7 |
| 2005 | 379.98 |
| 2006 | 382.09 |
| 2007 | 384.02 |
| 2008 | 385.83 |
| 2009 | 387.64 |
| 2010 | 390.1 |
| 2011 | 391.85 |
| 2012 | 394.06 |
| 2013 | 396.74 |
| 2014 | 398.81 |
| 2015 | 401.01 |
| 2016 | 404.41 |
| 2017 | 406.76 |
| 2018 | 408.72 |
| 2019 | 411.65 |
| 2020 | 414.21 |
| 2021 | 416.41 |
| 2022 | 418.53 |
| 2023 | 421.08 |
| 2024 | 424.61 |
| 2025 | 427.35 |