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The Human Component of the Global Carbon Cycle ASCENDS WORKSHOP 23-25 July, 2008 Ann Arbor, Michigan, USA Gregg Marland Environmental Sciences Division.

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Presentation on theme: "The Human Component of the Global Carbon Cycle ASCENDS WORKSHOP 23-25 July, 2008 Ann Arbor, Michigan, USA Gregg Marland Environmental Sciences Division."— Presentation transcript:

1 The Human Component of the Global Carbon Cycle ASCENDS WORKSHOP July, 2008 Ann Arbor, Michigan, USA Gregg Marland Environmental Sciences Division Oak Ridge National Laboratory and Tom Boden Oak Ridge National Laboratory, USA Khrystyna Hamal Lviv Polytechnic National University, Ukraine Matthias Jonas International Institute for Applied Systems Analysis, Austria

2 Anthropogenic C Emissions: Fossil Fuel Raupach et al. 2007, PNAS; Canadell et al 2007, PNAS : 1.3% y : 3.3% y Fossil Fuel: 8.4 Pg C [Total Anthrop.Emis.: = 9.9 Pg]

3 atmospheric CO 2 ocean land fossil fuel emissions deforestation CO 2 flux (Pg C y -1 ) Sink Source Time (y) Perturbation of Global Carbon Budget ( ) Le Quéré, unpublished; Canadell et al. 2007, PNAS

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5 CO 2 Emissions from the United States

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8 Cumulative fraction of total fossil-fuel emissions number of country cumulative countries fraction 1 USA China Russia India Japan Germany Canada UK Iran Mexico Ukraine Belarus Moldova

9 Sources of US anthropogenic CO 2 emissions Fossil fuel combustion Tg C Non-energy use of fossil fuels 37.6 Iron and steel manufacture 13.4 Cement production 12.5 Gas flaring/venting/leakage 7.8 Other industrial processes 22.9 Total From US EPA, 2008

10 Sectoral sources of CO 2 from fossil fuel combustion – USA Electric power generation 41.3% Transport 32.9% Industry 14.5% Residential 5.8% Commercial 3.7% Agriculture 0.8% US territories 1.0% US EPA, 2008

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13 From T.J. Blasing

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16 Vulcan project – CO 2 from power plants

17 Vulcan project – large industrial point sources

18 Vulcan Project – US C0 2 emissions

19 Carbon released directly by the US human population in Enhanced area represents carbon released in the metropolitan area of Chicago.

20 From T.J. Blasing

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26 Signal Analysis Under the Kyoto Protocol Jonas and Nilsson (2009: Tab. 1)

27 Signal Analysis Under the Kyoto Protocol ~ Risk  Undershooting U Committed Level Base Year Level x1x1 Time t1t1 Emissions t2t2 x2x2 Jonas and Nilsson (2007: Fig. 11); modified

28 CO 2 Emissions from Austria Austrian CO 2 emissions initial estimates and recalculations of historic emissions in 2000, 2001, 2002, 2003 and Data from: Austrian National Inventory Reports ( ).

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30 CO 2 emissions without LULUCF estimates. Data from: European Community National Inventory Reports.

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33 Revisions of Global Total Emissions

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35 Revisions of Global Total without China

36 Revisions of Global Total Without……

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