Year
|
All greenhouse gases and other forcing agents (incl. aerosols)
|
50 % probability of below 1.5 °C
|
50 % probability of below 2 °C
|
1970
|
322.4
|
430
|
530
|
1975
|
332.4
|
430
|
530
|
1978
|
340.3
|
430
|
530
|
1979
|
343.5
|
430
|
530
|
1980
|
346.6
|
430
|
530
|
1981
|
349.0
|
430
|
530
|
1982
|
351.7
|
430
|
530
|
1983
|
354.2
|
430
|
530
|
1984
|
356.8
|
430
|
530
|
1985
|
359.3
|
430
|
530
|
1986
|
362.0
|
430
|
530
|
1987
|
364.6
|
430
|
530
|
1988
|
368.6
|
430
|
530
|
1989
|
371.4
|
430
|
530
|
1990
|
373.4
|
430
|
530
|
1991
|
376.4
|
430
|
530
|
1992
|
378.1
|
430
|
530
|
1993
|
379.6
|
430
|
530
|
1994
|
382.1
|
430
|
530
|
1995
|
385.0
|
430
|
530
|
1996
|
387.7
|
430
|
530
|
1997
|
389.6
|
430
|
530
|
1998
|
393.2
|
430
|
530
|
1999
|
396.3
|
430
|
530
|
2000
|
398.3
|
430
|
530
|
2001
|
400.1
|
430
|
530
|
2002
|
402.3
|
430
|
530
|
2003
|
405.3
|
430
|
530
|
2004
|
407.0
|
430
|
530
|
2005
|
409.6
|
430
|
530
|
2006
|
413.1
|
430
|
530
|
2007
|
416.1
|
430
|
530
|
2008
|
419.8
|
430
|
530
|
2009
|
422.5
|
430
|
530
|
2010
|
426.2
|
430
|
530
|
2011
|
429.5
|
430
|
530
|
2012
|
433.0
|
430
|
530
|
2013
|
437.3
|
430
|
530
|
2014
|
440.6
|
430
|
530
|