***************************************************
*** Source: R.J. Andres                         ***
***         Institute of Northern Engineering   ***
***         University of Alaska Fairbanks      ***
***         Fairbanks, AK 99775-5900 USA        ***
***                                             ***
***         G. Marland                          ***
***         Environmental Sciences Division     ***
***         Oak Ridge National Laboratory       ***
***         Oak Ridge, TN 37831-6335 USA        ***
***                                             ***
***         S. Bischof                          ***
***         Connecticut College                 ***
***         New London, Connecticut 06320       ***
***************************************************

isoglob.dat

last updated 11 September 1995

Global average, annual del 13C signature for fossil fuel and
cement production. 

year  del 13C
1860   -24.10
1861   -24.10
1862   -24.11
1863   -24.11
1864   -24.10
1865   -24.11
1866   -24.11
1867   -24.11
1868   -24.11
1869   -24.11
1870   -24.11
1871   -24.11
1872   -24.11
1873   -24.12
1874   -24.12
1875   -24.11
1876   -24.12
1877   -24.12
1878   -24.12
1879   -24.13
1880   -24.13
1881   -24.15
1882   -24.16
1883   -24.16
1884   -24.17
1885   -24.19
1886   -24.21
1887   -24.23
1888   -24.23
1889   -24.25
1890   -24.27
1891   -24.27
1892   -24.28
1893   -24.29
1894   -24.28
1895   -24.29
1896   -24.30
1897   -24.31
1898   -24.31
1899   -24.31
1900   -24.31
1901   -24.33
1902   -24.34
1903   -24.34
1904   -24.35
1905   -24.36
1906   -24.35
1907   -24.35
1908   -24.37
1909   -24.39
1910   -24.40
1911   -24.40
1912   -24.41
1913   -24.40
1914   -24.44
1915   -24.47
1916   -24.49
1917   -24.50
1918   -24.48
1919   -24.55
1920   -24.55
1921   -24.59
1922   -24.62
1923   -24.67
1924   -24.72
1925   -24.75
1926   -24.79
1927   -24.81
1928   -24.87
1929   -24.94
1930   -24.96
1931   -25.03
1932   -25.07
1933   -25.06
1934   -25.08
1935   -25.09
1936   -25.10
1937   -25.15
1938   -25.17
1939   -25.17
1940   -25.17
1941   -25.16
1942   -25.20
1943   -25.30
1944   -25.43
1945   -25.71
1946   -25.71
1947   -25.69
1948   -25.78
1949   -25.90
1950   -25.86
1951   -26.00
1952   -26.11
1953   -26.16
1954   -26.21
1955   -26.24
1956   -26.29
1957   -26.37
1958   -26.42
1959   -26.51
1960   -26.61
1961   -26.79
1962   -26.91
1963   -27.00
1964   -27.12
1965   -27.23
1966   -27.35
1967   -27.55
1968   -27.70
1969   -27.85
1970   -27.89
1971   -28.01
1972   -28.07
1973   -28.13
1974   -28.16
1975   -28.12
1976   -28.16
1977   -28.09
1978   -28.17
1979   -28.19
1980   -28.20
1981   -28.24
1982   -28.21
1983   -28.20
1984   -28.28
1985   -28.24
1986   -28.19
1987   -28.30
1988   -28.31
1989   -28.34
1990   -28.43
1991   -28.46
1992   -28.43