|
|
|
Year
|
Carbon dioxide (ppm)
|
Average Global Temperature
°C
|
|
1959
|
315.83
|
15.04
|
|
1960
|
316.75
|
14.98
|
|
1961
|
317.49
|
15.10
|
|
1962
|
318.3
|
15.10
|
|
1963
|
318.83
|
15.10
|
|
1964
|
319.04
|
14.78
|
|
1965
|
319.87
|
14.88
|
|
1966
|
321.21
|
14.95
|
|
1967
|
322.02
|
14.99
|
|
1968
|
322.89
|
14.93
|
|
1969
|
324.46
|
15.05
|
|
1970
|
325.52
|
15.02
|
|
1971
|
326.16
|
14.93
|
|
1972
|
327.29
|
15.00
|
|
1973
|
329.51
|
15.11
|
|
1974
|
330.08
|
14.92
|
|
1975
|
330.99
|
14.92
|
|
1976
|
331.98
|
14.84
|
|
1977
|
333.73
|
15.11
|
|
1978
|
335.34
|
15.06
|
|
1979
|
336.68
|
15.09
|
|
1980
|
338.52
|
15.18
|
|
1981
|
339.76
|
15.29
|
|
1982
|
340.96
|
15.08
|
|
1983
|
342.61
|
15.24
|
|
1984
|
344.25
|
15.11
|
|
1985
|
345.73
|
15.09
|
|
1986
|
346.97
|
15.16
|
|
1987
|
348.75
|
15.27
|
|
1988
|
351.31
|
15.28
|
|
1989
|
352.75
|
15.22
|
|
1990
|
354.04
|
15.38
|
|
1991
|
355.48
|
15.36
|
|
1992
|
356.29
|
15.11
|
|
1993
|
356.99
|
15.14
|
|
1994
|
358.88
|
15.23
|
|
1995
|
360.9
|
15.39
|
|
1996
|
361.96
|
15.27
|
|
1997
|
364.11
|
15.50
|
| 1998 |
366.70
|
15.68
|
| 1999 |
368.37
|
15.28
|
|
