Year
|
All greenhouse gases (GHGs)
|
67% probability staying below 1.5ºC
|
67% probability of staying below 2ºC
|
1860
|
285.71
|
465
|
505
|
1865
|
285.39
|
465
|
505
|
1870
|
285.06
|
465
|
505
|
1875
|
285.66
|
465
|
505
|
1880
|
286.25
|
465
|
505
|
1885
|
287.05
|
465
|
505
|
1890
|
287.84
|
465
|
505
|
1895
|
287.74
|
465
|
505
|
1900
|
287.65
|
465
|
505
|
1905
|
285.81
|
465
|
505
|
1910
|
283.98
|
465
|
505
|
1915
|
286.67
|
465
|
505
|
1920
|
289.38
|
465
|
505
|
1925
|
291.48
|
465
|
505
|
1930
|
293.6
|
465
|
505
|
1935
|
293.71
|
465
|
505
|
1940
|
293.83
|
465
|
505
|
1945
|
295.36
|
465
|
505
|
1950
|
296.89
|
465
|
505
|
1955
|
294.51
|
465
|
505
|
1960
|
294.21
|
465
|
505
|
1965
|
293.28
|
465
|
505
|
1970
|
295.15
|
465
|
505
|
1975
|
304.02
|
465
|
505
|
1978
|
310.5
|
465
|
505
|
1979
|
312.49
|
465
|
505
|
1980
|
315.63
|
465
|
505
|
1981
|
318.36
|
465
|
505
|
1982
|
320.97
|
465
|
505
|
1983
|
324.07
|
465
|
505
|
1984
|
327.07
|
465
|
505
|
1985
|
330.14
|
465
|
505
|
1986
|
333.28
|
465
|
505
|
1987
|
336.61
|
465
|
505
|
1988
|
341.02
|
465
|
505
|
1989
|
344.3
|
465
|
505
|
1990
|
346.86
|
465
|
505
|
1991
|
351.27
|
465
|
505
|
1992
|
354.38
|
465
|
505
|
1993
|
357.41
|
465
|
505
|
1994
|
361.32
|
465
|
505
|
1995
|
365.56
|
465
|
505
|
1996
|
369.73
|
465
|
505
|
1997
|
373.21
|
465
|
505
|
1998
|
378.4
|
465
|
505
|
1999
|
383.16
|
465
|
505
|
2000
|
386.76
|
465
|
505
|
2001
|
388.7
|
465
|
505
|
2002
|
391.05
|
465
|
505
|
2003
|
394.14
|
465
|
505
|
2004
|
396.3
|
465
|
505
|
2005
|
398.65
|
465
|
505
|
2006
|
401.24
|
465
|
505
|
2007
|
403.58
|
465
|
505
|
2008
|
406.5
|
465
|
505
|
2009
|
408.46
|
465
|
505
|
2010
|
411.3
|
465
|
505
|
2011
|
416.63
|
465
|
505
|
2012
|
422.22
|
465
|
505
|
2013
|
428.58
|
465
|
505
|
2014
|
434.31
|
465
|
505
|
2015
|
440.48
|
465
|
505
|
2016
|
446.24
|
465
|
505
|
2017
|
450.76
|
465
|
505
|
2018
|
455.69
|
465
|
505
|
2019
|
460.61
|
465
|
505
|
2020
|
465.21
|
465
|
505
|