1765 TO 1990 CO2 HISTORICAL GLOBAL MEAN (HALF-YEARLY) AND GROWTH RATE
1990 353.32 354.17 1.70 1.70
1989 351.62 352.47 1.70 1.70
1988 349.92 350.77 1.68 1.69
1987 348.24 349.08 1.64 1.67
1986 346.60 347.41 1.61 1.62
1985 344.99 345.79 1.58 1.59
1984 343.41 344.20 1.53 1.56
1983 341.88 342.64 1.51 1.52
1982 340.37 341.12 1.49 1.50
1981 338.88 339.62 1.47 1.48
1980 337.41 338.14 1.45 1.46
1979 335.96 336.68 1.42 1.43
1978 334.54 335.25 1.38 1.41
1977 333.16 333.84 1.33 1.35
1976 331.83 332.49 1.28 1.31
1975 330.55 331.18 1.24 1.26
1974 329.31 329.92 1.23 1.23
1973 328.08 328.69 1.20 1.21
1972 326.88 327.48 1.17 1.19
1971 325.71 326.29 1.12 1.15
1970 324.59 325.14 1.07 1.09
1969 323.52 324.05 1.01 1.04
1968 322.51 323.01 .94 .98
1967 321.57 322.03 .88 .91
1966 320.69 321.12 .82 .85
1965 319.87 320.27 .77 .79
1964 319.10 319.48 .73 .75
1963 318.37 318.73 .70 .71
1962 317.67 318.02 .69 .70
1961 316.98 317.32 .68 .68
1960 316.30 316.64 .65 .66
1959 315.65 315.98 .62 .64
1958 315.03 315.34 .60 .61
1957 314.43 314.73 .56 .58
1956 313.87 314.15 .55 .56
1955 313.32 313.59 .52 .53
1954 312.80 313.06 .49 .51
1953 312.31 312.55 .47 .48
1952 311.84 312.07 .46 .46
1951 311.38 311.61 .43 .44
1950 310.95 311.17 .41 .42
1949 310.54 310.75 .39 .41
1948 310.15 310.34 .38 .39
1947 309.77 309.95 .37 .37
1946 309.40 309.58 .35 .35
1945 309.05 309.23 .33 .34
1944 308.72 308.89 .32 .33
1943 308.40 308.56 .31 .32
1942 308.09 308.24 .30 .30
1941 307.79 307.94 .28 .29
1940 307.51 307.65 .29 .29
1939 307.22 307.36 .27 .27
1938 306.95 307.09 .27 .28
1937 306.68 306.81 .27 .26
1936 306.41 306.55 .26 .27
1935 306.15 306.28 .27 .27
1934 305.88 306.01 .27 .26
1933 305.61 305.75 .27 .27
1932 305.34 305.48 .27 .27
1931 305.07 305.21 .28 .28
1930 304.79 304.93 .28 .28
1929 304.51 304.65 .29 .28
1928 304.22 304.37 .29 .29
1927 303.93 304.08 .30 .30
1926 303.63 303.78 .30 .30
1925 303.33 303.48 .31 .31
1924 303.02 303.17 .31 .31
1923 302.71 302.86 .32 .31
1922 302.39 302.55 .31 .31
1921 302.08 302.24 .31 .32
1920 301.77 301.92 .32 .31
1919 301.45 301.61 .31 .32
1918 301.14 301.29 .32 .31
1917 300.82 300.98 .31 .31
1916 300.51 300.67 .31 .32
1915 300.20 300.35 .32 .31
1914 299.88 300.04 .31 .31
1913 299.57 299.73 .31 .31
1912 299.26 299.42 .30 .31
1911 298.96 299.11 .31 .30
1910 298.65 298.81 .30 .31
1909 298.35 298.50 .29 .30
1908 298.06 298.20 .30 .29
1907 297.76 297.91 .28 .29
1906 297.48 297.62 .28 .28
1905 297.20 297.34 .27 .28
1904 296.93 297.06 .27 .27
1903 296.66 296.79 .25 .26
1902 296.41 296.53 .25 .25
1901 296.16 296.28 .24 .24
1900 295.92 296.04 .24 .24
1899 295.68 295.80 .24 .24
1898 295.44 295.56 .24 .24
1897 295.20 295.32 .24 .24
1896 294.96 295.08 .24 .24
1895 294.72 294.84 .25 .24
1894 294.47 294.60 .25 .25
1893 294.22 294.35 .25 .25
1892 293.97 294.10 .26 .26
1891 293.71 293.84 .25 .25
1890 293.46 293.59 .26 .26
1889 293.20 293.33 .26 .26
1888 292.94 293.07 .25 .26
1887 292.69 292.81 .25 .25
1886 292.44 292.56 .25 .25
1885 292.19 292.31 .25 .24
1884 291.94 292.07 .24 .25
1883 291.70 291.82 .23 .23
1882 291.47 291.59 .23 .24
1881 291.24 291.35 .22 .22
1880 291.02 291.13 .22 .22
1879 290.80 290.91 .21 .22
1878 290.59 290.69 .20 .20
1877 290.39 290.49 .19 .20
1876 290.20 290.29 .19 .19
1875 290.01 290.10 .18 .18
1874 289.83 289.92 .17 .18
1873 289.66 289.74 .17 .16
1872 289.49 289.58 .15 .12
1871 289.34 289.46 .15 .20
1870 289.19 289.26 .15 .15
1869 289.04 289.11 .14 .14
1868 288.90 288.97 .13 .13
1867 288.77 288.84 .12 .13
1866 288.65 288.71 .13 .13
1865 288.52 288.58 .11 .12
1864 288.41 288.46 .12 .11
1863 288.29 288.35 .11 .11
1862 288.18 288.24 .10 .11
1861 288.08 288.13 .11 .11
1860 287.97 288.02 .10 .10
1859 287.87 287.92 .11 .10
1858 287.76 287.82 .10 .11
1857 287.66 287.71 .11 .11
1856 287.55 287.60 .11 .10
1855 287.44 287.50 .11 .11
1854 287.33 287.39 .12 .12
1853 287.21 287.27 .12 .12
1852 287.09 287.15 .12 .12
1851 286.97 287.03 .13 .12
1850 286.84 286.91 .12 .13
1849 286.72 286.78 .14 .13
1848 286.58 286.65 .13 .13
1847 286.45 286.52 .14 .14
1846 286.31 286.38 .14 .14
1845 286.17 286.24 .14 .14
1844 286.03 286.10 .15 .15
1843 285.88 285.95 .14 .14
1842 285.74 285.81 .15 .15
1841 285.59 285.66 .14 .14
1840 285.45 285.52 .13 .13
1839 285.32 285.39 .13 .13
1838 285.19 285.26 .12 .13
1837 285.07 285.13 .11 .12
1836 284.96 285.01 .12 .11
1835 284.84 284.90 .10 .11
1834 284.74 284.79 .11 .10
1833 284.63 284.69 .10 .11
1832 284.53 284.58 .09 .09
1831 284.44 284.49 .10 .10
1830 284.34 284.39 .09 .09
1829 284.25 284.30 .09 .10
1828 284.16 284.20 .09 .09
1827 284.07 284.11 .10 .09
1826 283.97 284.02 .09 .09
1825 283.88 283.93 .09 .09
1824 283.79 283.84 .09 .10
1823 283.70 283.74 .10 .09
1822 283.60 283.65 .10 .10
1821 283.50 283.55 .10 .10
1820 283.40 283.45 .10 .10
1819 283.30 283.35 .11 .11
1818 283.19 283.24 .11 .11
1817 283.08 283.13 .12 .11
1816 282.96 283.02 .12 .12
1815 282.84 282.90 .12 .12
1814 282.72 282.78 .13 .13
1813 282.59 282.65 .13 .13
1812 282.46 282.52 .14 .13
1811 282.32 282.39 .14 .14
1810 282.18 282.25 .13 .13
1809 282.05 282.12 .14 .14
1808 281.91 281.98 .15 .15
1807 281.76 281.83 .14 .14
1806 281.62 281.69 .14 .14
1805 281.48 281.55 .14 .14
1804 281.34 281.41 .15 .14
1803 281.19 281.27 .14 .15
1802 281.05 281.12 .14 .14
1801 280.91 280.98 .13 .14
1800 280.78 280.84 .14 .13
1799 280.64 280.71 .13 .14
1798 280.51 280.57 .13 .13
1797 280.38 280.44 .13 .13
1796 280.25 280.31 .12 .12
1795 280.13 280.19 .12 .12
1794 280.01 280.07 .12 .12
1793 279.89 279.95 .11 .12
1792 279.78 279.83 .11 .11
1791 279.67 279.72 .11 .11
1790 279.56 279.61 .10 .10
1789 279.46 279.51 .10 .10
1788 279.36 279.41 .10 .10
1787 279.26 279.31 .09 .09
1786 279.17 279.22 .09 .09
1785 279.08 279.13 .09 .09
1784 278.99 279.04 .08 .09
1783 278.91 278.95 .08 .08
1782 278.83 278.87 .07 .08
1781 278.76 278.79 .08 .07
1780 278.68 278.72 .07 .07
1779 278.61 278.65 .06 .07
1778 278.55 278.58 .07 .07
1777 278.48 278.51 .06 .06
1776 278.42 278.45 .06 .06
1775 278.36 278.39 .05 .05
1774 278.31 278.34 .05 .06
1773 278.26 278.28 .05 .05
1772 278.21 278.23 .05 .04
1771 278.16 278.19 .04 .05
1770 278.12 278.14 .04 .04
1769 278.08 278.10 .04 .04
1768 278.04 278.06 .03 .03
1767 278.01 278.03 .03 .04
1766 277.98 277.99 .03 .03
1765 277.95 277.96 .02 .02
--- --- --- --- ---
data format : i4, 4x, 2f7.2
Weighted smoothing spline fit, ice core and Mauna Loa CO2.
Data are for the standard case: growth rate of 1.7 ppmv/yr
for 1990.5. 50% attenuation at 23.4968; REG = 100.000.
Units are time in years, CO2 in ppmv, and d/dt of CO2 in
ppmv/yr.
Source:
(1) Mauna Loa Observatory data -- C.D.Keeling and T.P.Whorf,
Scripps Institution of Oceanography, La Jolla, California,
U.S.A.
(2) ice core data -- H.Friedli, H.Lotscher, E.Moor, A.Neftel,
H.Oeschger, U.Siegenthaler, and B.Stauffer, University of
Bern, Bern, Switzerland