Atmospheric CO2 Live Stream, Monitoring, and CO2 Records for MLO Observatory

501020

Atmospheric CO2 live updates from March 1958 to Present | Mauna Loa Observatory
412.62 ppm
NOAA-ESRL live updates: | units = parts per million (ppm)

YearJanFebMarAprMayJunJulAugSepOctNovDec
2020413.4414.11414.5415.62--------
2019410.83411.75411.97413.32414.66413.92411.77409.94408.54408.53410.27411.76
2018407.98408.32409.46410.26411.24410.79408.71406.99409.94406408.02409.07
2017406.13406.42407.18409409.65408.84407.07405.07403.38403.64405.14406.82
2016402.52404.04404.83407.42407.7406.81404.39402.25401.03401.57403.53404.42
2015399.98400.28401.54403.28403.96402.8401.31398.93397.63398.29400.16401.85
2014397.85398.01399.77401.38401.78401.25399.1397.03395.38396.03397.28398.91
2013395.55396.8397.43398.41399.78398.61397.32395.2393.45393.7395.16396.84
2012393.12393.86394.4396.18396.74395.71394.36392.39391.11391.05392.98394.34
2011391.33391.86392.6393.25394.19393.73392.51390.13389.08389390.28391.86
2010388.71390.2391.17392.46393392.15390.2388.35386.85387.24388.67389.79
2009386.94387.48388.82389.55390.14389.48388.03386.11384.74384.43386.02387.42
2008385.52385.82386.03387.21388.54387.76386.36384.09383.18382.99384.19385.56
2007382.89383.9384.58386.5386.56386.1384.5381.99380.96381.12382.45383.95
2006381.38382.19382.67384.61385.03384.05382.46380.41378.85379.13380.15381.82
2005378.46379.73380.77382.29382.45382.21380.74378.74376.7377378.35380.11
2004377377.87378.88380.35380.62379.69377.47376.01374.25374.46376.16377.51
2003374.88375.64376.45377.73378.6378.28376.7374.38373.17373.14374.66375.99
2002372.53373.2374.12375.02375.76375.52374.01371.85370.75370.55372.25373.79
2001370.59371.51372.43373.37373.85373.21371.51369.61368.18368.45369.76371.24
2000369.29369.54370.6371.82371.58371.7369.86368.13367367.03368.37369.67
1999368.18369.07369.68370.99370.96370.3369.45366.9364.81365.37366.72368.1
1998365.26365.98367.24368.66369.42368.99367.82365.95364.02364.4365.52367.13
1997363.09364.03364.51366.35366.64365.59364.31362.25360.29360.82362.49364.38
1996362.07363.24364.17364.57365.13364.92363.55361.38359.54359.58360.89362.24
1995359.92360.86361.83363.3363.69363.19361.64359.12358.17357.99359.45360.68
1994358.24358.92359.99361.23361.65360.81359.38357.46355.73356.07357.53358.98
1993357357.31358.47359.27360.19359.52357.33355.64354.03354.12355.41356.91
1992356.25357.11357.86359.09359.59359.33357.01354.94352.96353.32354.32355.57
1991354.84355.73357.23358.66359.13358.13356.19353.85352.25352.35353.81355.12
1990353.8355.04355.73356.32357.32356.34354.84353.01351.31351.62353.07354.33
1989352.91353.27353.96355.64355.86355.37353.99351.81350.05350.25351.49352.85
1988350.39351.64352.41353.69354.21353.72352.69350.4348.92349.13350.2351.41
1987348.52348.73349.73351.31352.09351.53350.11348.08346.52346.59347.96349.16
1986346.56347.28348.01349.77350.38349.93348.16346.08345.22344.51345.93347.22
1985345.21346.16347.74348.34349.06348.38346.72345.02343.27343.13344.49345.88
1984344.1344.79345.52346.84347.63346.97345.53343.55341.4341.67343.1344.7
1983341.68342.9343.33345.25346.03345.63344.19342.27340.35340.38341.59343.05
1982340.96341.73342.81343.97344.63343.79342.32340.09338.28338.29339.6340.9
1981339.29340.55341.61342.53343.03342.54340.78338.44336.95337.08338.58339.88
1980337.9338.34340.01340.93341.48341.33339.4337.7336.19336.15337.27338.32
1979336.14336.69338.27338.95339.21339.26337.54335.75333.98334.19335.31336.81
1978334.95335.25336.66337.69338.03338.01336.41334.41332.37332.41333.75334.9
1977332.66333.13334.95336.13336.93336.17334.88332.56331.29331.27332.41333.6
1976331.59332.75333.52334.64334.77334333.06330.68328.95328.75330.15331.62
1975330.73331.46331.9333.17333.94333.45331.98329.95328.5328.35329.37330.59
1974329.35330.71331.48332.65333.2332.16331.07329.12327.32327.28328.3329.58
1973328.54329.56330.3331.5332.48332.07330.87329.31327.51327.18328.16328.64
1972326.77327.63327.75329.72330.07329.09328.05326.32324.93325.06326.5327.55
1971326.17326.68327.18327.78328.92328.57327.34325.46323.36323.57324.8326.01
1970325.03325.99326.87328.13328.07327.66326.35324.69323.1323.16323.98325.13
1969324324.42325.64326.66327.34326.76325.88323.67322.38321.78322.85324.11
1968322.57323.15323.89325.02325.57325.36324.14322.03320.41320.25321.31322.84
1967322.07322.5323.04324.42325324.09322.55320.92319.31319.31320.72321.96
1966320.62321.59322.39323.87324.01323.75322.39320.37318.64318.1319.79321.08
1965319.44320.44320.89322.13322.16321.87321.39318.81317.81317.3318.87319.42
1964319.57320.07320.73321.77322.25321.89320.44318.7316.7316.79317.79318.71
1963318.74319.08319.86321.39322.25321.47319.74317.77316.21315.99317.12318.31
1962317.94318.56319.68320.63321.01320.55319.58317.4316.26315.42316.69317.69
1961316.93317.7318.54319.48320.58319.77318.57316.79314.8315.38316.1317.01
1960316.43316.97317.58319.02320.03319.59318.18315.91314.16313.83315316.19
1959315.62316.38316.71317.72318.29318.15316.54314.8313.84313.26314.8315.58
1958315.71317.45317.5317.1315.86314.93313.2312.66313.33314.67

Scripps data: NOAA-ESRL Global Monitoring