1750
278.0
CO2 (ppm)
1755
278.0
CO2 (ppm)
1760
278.0
CO2 (ppm)
1765
278.0
CO2 (ppm)
1770
278.6
CO2 (ppm)
1775
279.3
CO2 (ppm)
1780
280.1
CO2 (ppm)
1785
280.8
CO2 (ppm)
1790
281.6
CO2 (ppm)
1795
282.3
CO2 (ppm)
1800
282.9
CO2 (ppm)
1805
283.4
CO2 (ppm)
1810
283.8
CO2 (ppm)
1815
284.0
CO2 (ppm)
1820
284.2
CO2 (ppm)
1825
284.3
CO2 (ppm)
1830
284.4
CO2 (ppm)
1835
283.8
CO2 (ppm)
1840
283.4
CO2 (ppm)
1845
283.9
CO2 (ppm)
1850
284.7
CO2 (ppm)
1855
285.4
CO2 (ppm)
1860
286.2
CO2 (ppm)
1865
286.9
CO2 (ppm)
1870
287.5
CO2 (ppm)
1875
288.7
CO2 (ppm)
1880
290.7
CO2 (ppm)
1885
293.0
CO2 (ppm)
1890
294.2
CO2 (ppm)
1895
294.8
CO2 (ppm)
1900
295.8
CO2 (ppm)
1905
297.6
CO2 (ppm)
1910
299.7
CO2 (ppm)
1915
301.4
CO2 (ppm)
1920
303.0
CO2 (ppm)
1925
305.0
CO2 (ppm)
1930
307.2
CO2 (ppm)
1935
309.4
CO2 (ppm)
1940
310.4
CO2 (ppm)
1945
310.1
CO2 (ppm)
1950
310.7
CO2 (ppm)
1955
313.0
CO2 (ppm)
1960
316.9
CO2 (ppm)
1965
320.0
CO2 (ppm)
1970
325.0
CO2 (ppm)
1975
331.3
CO2 (ppm)
1978
334.6
CO2 (ppm)
1979
336.74
CO2 (ppm)
1980
338.7
CO2 (ppm)
1981
339.74
CO2 (ppm)
1982
340.92
CO2 (ppm)
1983
342.47
CO2 (ppm)
1984
344.13
CO2 (ppm)
1985
345.47
CO2 (ppm)
1986
346.89
CO2 (ppm)
1987
348.46
CO2 (ppm)
1988
350.93
CO2 (ppm)
1989
352.57
CO2 (ppm)
1990
353.72
CO2 (ppm)
1991
355.15
CO2 (ppm)
1992
355.9
CO2 (ppm)
1993
356.63
CO2 (ppm)
1994
358.2
CO2 (ppm)
1995
360.23
CO2 (ppm)
1996
362.01
CO2 (ppm)
1997
363.17
CO2 (ppm)
1998
365.69
CO2 (ppm)
1999
367.81
CO2 (ppm)
2000
368.92
CO2 (ppm)
2001
370.38
CO2 (ppm)
2002
372.49
CO2 (ppm)
2003
375.08
CO2 (ppm)
2004
376.61
CO2 (ppm)
2005
378.97
CO2 (ppm)
2006
381.17
CO2 (ppm)
2007
382.89
CO2 (ppm)
2008
384.98
CO2 (ppm)
2009
386.42
CO2 (ppm)
2010
388.71
CO2 (ppm)
2011
390.57
CO2 (ppm)
2012
392.64
CO2 (ppm)
2013
395.49
CO2 (ppm)
2014
397.45
CO2 (ppm)
2015
399.58
CO2 (ppm)
2016
402.87
CO2 (ppm)
2017
405.19
CO2 (ppm)
2018
407.58
CO2 (ppm)
1750
719.01
CH4 (ppb)
1755
719.97
CH4 (ppb)
1760
720.93
CH4 (ppb)
1765
723.71
CH4 (ppb)
1770
726.5
CH4 (ppb)
1775
730.53
CH4 (ppb)
1780
734.57
CH4 (ppb)
1785
739.29
CH4 (ppb)
1790
744.01
CH4 (ppb)
1795
747.4
CH4 (ppb)
1800
750.8
CH4 (ppb)
1805
755.45
CH4 (ppb)
1810
760.11
CH4 (ppb)
1815
764.92
CH4 (ppb)
1820
769.73
CH4 (ppb)
1825
774.54
CH4 (ppb)
1830
779.35
CH4 (ppb)
1835
784.21
CH4 (ppb)
1840
789.06
CH4 (ppb)
1845
795.24
CH4 (ppb)
1850
801.42
CH4 (ppb)
1855
808.5
CH4 (ppb)
1860
815.59
CH4 (ppb)
1865
823.38
CH4 (ppb)
1870
831.18
CH4 (ppb)
1875
839.33
CH4 (ppb)
1880
847.48
CH4 (ppb)
1885
857.35
CH4 (ppb)
1890
867.22
CH4 (ppb)
1895
878.76
CH4 (ppb)
1900
890.3
CH4 (ppb)
1905
912.07
CH4 (ppb)
1910
935.46
CH4 (ppb)
1915
961.48
CH4 (ppb)
1920
990.23
CH4 (ppb)
1925
1020.2
CH4 (ppb)
1930
1049.05
CH4 (ppb)
1935
1076.54
CH4 (ppb)
1940
1102.4
CH4 (ppb)
1945
1128.83
CH4 (ppb)
1950
1161.73
CH4 (ppb)
1955
1207.03
CH4 (ppb)
1960
1262.97
CH4 (ppb)
1965
1328.47
CH4 (ppb)
1970
1403.19
CH4 (ppb)
1975
1483.57
CH4 (ppb)
1978
1532.77
CH4 (ppb)
1979
1549.53
CH4 (ppb)
1980
1566.28
CH4 (ppb)
1981
1583.48
CH4 (ppb)
1982
1600.69
CH4 (ppb)
1983
1617.89
CH4 (ppb)
1984
1635.09
CH4 (ppb)
1985
1652.29
CH4 (ppb)
1986
1669.49
CH4 (ppb)
1987
1680.66
CH4 (ppb)
1988
1698.83
CH4 (ppb)
1989
1710.52
CH4 (ppb)
1990
1709.33
CH4 (ppb)
1991
1729.07
CH4 (ppb)
1992
1731.05
CH4 (ppb)
1993
1735.65
CH4 (ppb)
1994
1741.66
CH4 (ppb)
1995
1747.1
CH4 (ppb)
1996
1749.86
CH4 (ppb)
1997
1753.94
CH4 (ppb)
1998
1762.43
CH4 (ppb)
1999
1772.33
CH4 (ppb)
2000
1774.07
CH4 (ppb)
2001
1772.95
CH4 (ppb)
2002
1773.14
CH4 (ppb)
2003
1777.41
CH4 (ppb)
2004
1775.44
CH4 (ppb)
2005
1774.55
CH4 (ppb)
2006
1776.4
CH4 (ppb)
2007
1781.75
CH4 (ppb)
2008
1789.94
CH4 (ppb)
2009
1793.63
CH4 (ppb)
2010
1796.84
CH4 (ppb)
2011
1803.42
CH4 (ppb)
2012
1810.33
CH4 (ppb)
2013
1815.44
CH4 (ppb)
2014
1824.4
CH4 (ppb)
2015
1834.63
CH4 (ppb)
2016
1842.4
CH4 (ppb)
2017
1849.95
CH4 (ppb)
2018
CH4 (ppb)
1750
270.0
N2O (ppb)
1755
270.3
N2O (ppb)
1760
270.6
N2O (ppb)
1765
270.9
N2O (ppb)
1770
271.2
N2O (ppb)
1775
271.5
N2O (ppb)
1780
271.8
N2O (ppb)
1785
272.1
N2O (ppb)
1790
272.4
N2O (ppb)
1795
272.7
N2O (ppb)
1800
273.0
N2O (ppb)
1805
273.24
N2O (ppb)
1810
273.48
N2O (ppb)
1815
273.72
N2O (ppb)
1820
273.96
N2O (ppb)
1825
274.2
N2O (ppb)
1830
274.44
N2O (ppb)
1835
274.68
N2O (ppb)
1840
274.92
N2O (ppb)
1845
275.16
N2O (ppb)
1850
275.4
N2O (ppb)
1855
275.9
N2O (ppb)
1860
276.4
N2O (ppb)
1865
276.9
N2O (ppb)
1870
277.4
N2O (ppb)
1875
277.8
N2O (ppb)
1880
278.2
N2O (ppb)
1885
278.7
N2O (ppb)
1890
279.1
N2O (ppb)
1895
279.5
N2O (ppb)
1900
279.8
N2O (ppb)
1905
280.3
N2O (ppb)
1910
281.0
N2O (ppb)
1915
281.8
N2O (ppb)
1920
282.9
N2O (ppb)
1925
284.0
N2O (ppb)
1930
285.0
N2O (ppb)
1935
285.9
N2O (ppb)
1940
286.7
N2O (ppb)
1945
287.8
N2O (ppb)
1950
289.0
N2O (ppb)
1955
290.1
N2O (ppb)
1960
291.4
N2O (ppb)
1965
292.9
N2O (ppb)
1970
294.9
N2O (ppb)
1975
297.4
N2O (ppb)
1978
298.82
N2O (ppb)
1979
300.04
N2O (ppb)
1980
300.65
N2O (ppb)
1981
301.23
N2O (ppb)
1982
303.56
N2O (ppb)
1983
303.78
N2O (ppb)
1984
304.02
N2O (ppb)
1985
304.54
N2O (ppb)
1986
305.37
N2O (ppb)
1987
305.55
N2O (ppb)
1988
306.49
N2O (ppb)
1989
307.48
N2O (ppb)
1990
308.78
N2O (ppb)
1991
309.57
N2O (ppb)
1992
310.0
N2O (ppb)
1993
310.25
N2O (ppb)
1994
310.98
N2O (ppb)
1995
311.78
N2O (ppb)
1996
312.81
N2O (ppb)
1997
313.53
N2O (ppb)
1998
314.2
N2O (ppb)
1999
315.15
N2O (ppb)
2000
316.14
N2O (ppb)
2001
316.89
N2O (ppb)
2002
317.47
N2O (ppb)
2003
318.21
N2O (ppb)
2004
318.93
N2O (ppb)
2005
319.6
N2O (ppb)
2006
320.37
N2O (ppb)
2007
321.14
N2O (ppb)
2008
322.11
N2O (ppb)
2009
322.88
N2O (ppb)
2010
323.7
N2O (ppb)
2011
324.61
N2O (ppb)
2012
325.58
N2O (ppb)
2013
326.53
N2O (ppb)
2014
327.61
N2O (ppb)
2015
328.51
N2O (ppb)
2016
329.33
N2O (ppb)
2017
330.31
N2O (ppb)
2018
N2O (ppb)