Year
|
All greenhouse gases including aerosols
|
50 % probability of below 2 °C
|
50 % probability of below 1.5 °C
|
1970
|
322.41
|
545.0
|
478.0
|
1971
|
|
|
|
1972
|
|
|
|
1973
|
|
|
|
1974
|
|
|
|
1975
|
332.36
|
545.0
|
478.0
|
1976
|
|
|
|
1977
|
|
|
|
1978
|
340.57
|
545.0
|
478.0
|
1979
|
343.78
|
545.0
|
478.0
|
1980
|
346.84
|
545.0
|
478.0
|
1981
|
349.31
|
545.0
|
478.0
|
1982
|
351.94
|
545.0
|
478.0
|
1983
|
354.5
|
545.0
|
478.0
|
1984
|
357.13
|
545.0
|
478.0
|
1985
|
359.61
|
545.0
|
478.0
|
1986
|
362.28
|
545.0
|
478.0
|
1987
|
364.92
|
545.0
|
478.0
|
1988
|
368.86
|
545.0
|
478.0
|
1989
|
371.73
|
545.0
|
478.0
|
1990
|
373.73
|
545.0
|
478.0
|
1991
|
376.72
|
545.0
|
478.0
|
1992
|
378.37
|
545.0
|
478.0
|
1993
|
379.86
|
545.0
|
478.0
|
1994
|
382.4
|
545.0
|
478.0
|
1995
|
385.36
|
545.0
|
478.0
|
1996
|
388.05
|
545.0
|
478.0
|
1997
|
389.98
|
545.0
|
478.0
|
1998
|
393.52
|
545.0
|
478.0
|
1999
|
396.72
|
545.0
|
478.0
|
2000
|
398.64
|
545.0
|
478.0
|
2001
|
400.3
|
545.0
|
478.0
|
2002
|
402.65
|
545.0
|
478.0
|
2003
|
405.67
|
545.0
|
478.0
|
2004
|
407.4
|
545.0
|
478.0
|
2005
|
410.01
|
545.0
|
478.0
|
2006
|
413.47
|
545.0
|
478.0
|
2007
|
416.55
|
545.0
|
478.0
|
2008
|
420.21
|
545.0
|
478.0
|
2009
|
422.92
|
545.0
|
478.0
|
2010
|
426.62
|
545.0
|
478.0
|
2011
|
429.97
|
545.0
|
478.0
|
2012
|
433.5
|
545.0
|
478.0
|
2013
|
437.83
|
545.0
|
478.0
|
2014
|
441.35
|
545.0
|
478.0
|
2015
|
445.04
|
545.0
|
478.0
|
2016
|
449.18
|
545.0
|
478.0
|