Atmospheric Greenhouse Gas Abundances
Carbon Dioxide (CO2)
Long-Term Annual Means with IPCC Scenarios
Figure in PDF. Figure with IPCC 2007 and 2013 comparisons in PDF. Data: CO2 (Data through 2017, Last updated 2018/03/06)
Recent Mauna Loa CO2
Figure in PDF (Data through May 2018, Last updated 2018/06/07)
Data Source: Dr. Pieter Tans, NOAA/ESRL (www.esrl.noaa.gov/gmd/ccgg/trends/) and Dr. Ralph Keeling, Scripps Institution of Oceanography (scrippsco2.ucsd.edu/)
Recent Global CO2
Figure in PDF (Data through February 2018, Last updated 2018/05/06)
Data Source: Ed Dlugokencky and Pieter Tans, NOAA/ESRL (www.esrl.noaa.gov/gmd/ccgg/trends/) and Dr. Ralph Keeling, Scripps Institution of Oceanography (scrippsco2.ucsd.edu/)
ERL (2013) Fig. 2 and PLOS ONE (2013) Fig. 6 Update
Annnual change of CO2 (globally since 1980 and at Mauna Loa before that) compared with the annual increase of the global mean surface temperature and Nino 3.4 temperature data. Figure in PDF
"Burden" (2017) Fig. 6 Update
Left: Annnual change of CO2. Right: Correlation between the annual change of CO2 and annual change of the global mean surface temperature. Figure in PDF
For 1981-2018 (using only global data, no Mauna Loa data)
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Methane (CH4)
Long-Term Annual Means with IPCC Scenarios
Figure in PDF. Figure with IPCC 2007 and 2013 comparisons in PDF. Data: CH4 (Data through 2017, Last updated 2018/03/07)
Recent Global CH4
Figure in PDF (Data through February 2018, Last updated 2018/05/06)
Data Source: Ed Dlugokencky, NOAA/ESRL (www.esrl.noaa.gov/gmd/ccgg/trends_ch4/)
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Nitrous Oxide (N2O)
Long-Term Annual Means with IPCC Scenarios
Figure in PDF. Figure with IPCC 2007 and 2013 comparisons in PDF. Data: N2O (Data through 2017, Last updated 2018/03/08)
Recent Global N2O
Figure in PDF (Data through April 2018, Last updated 2018/05/08)
Data Source: Combined Nitrous Oxide data from
the NOAA/ESRL Global Monitoring Division. (ftp://ftp.cmdl.noaa.gov/hats/n2o/combined/GMD_global_N2O.txt)
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Other Trace Gases
mixing ratios: 1900-1990 (2016/07/02), 1992-2017 (2018/03/26), 2015-2100 (2018/03/26).
Figure in PDF. (Data through 2017 with some estimates for 2017, Last modifies 2018/04/25)
forcings: 1900-1990 (2016/07/09),
1992-2016
(2017/03/30),
2015-2100 (2016/07/04).
Recent Forcing and Its Growtha
Figure in PDF (Data through 2017, Last updated 2018/05/01)
Data source: NOAA ESRL HATS Total_Cl_Br, NOAA GMD HATS SF6 pages.
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Greenhouse Gas Forcing Compared with Future Scenarios
Figure also available in PDF. Data through 2017. (Last modified: 2018/04/25)
The original figure is Fig. 2 in Hansen, Fung, Lacis, et al. 1988, "Global Climate Changes as Forecast by Goddard Institute for Space Studies Three-Dimensional Model", JGR 93, 9341-9364.* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Greenhouse Gas Forcing Growth Rates
The curves are 5-year running means with 3-year running mean for 2015.
Figure also available in PDF.
(Last modified: 2018/04/28)