How to present the timing of emissions from bioenergy in LCA and GHG accounting

Expert Working Meeting at
Argonne National Laboratory, Chicago, April 12th – 13th 2012

Organized by

Task 38 - Greenhouse Gas Balances of Biomass and Bioenergy Systems

Hosted by: Argonne National Laboratory, Chicago



Objectives and results of the working meeting


On April 12th & 13th, 2012 Task 38 hosted this expert meeting on How to present the timing of emissions from bioenergy in LCA and GHG accounting at the Argonne National Laboratory, Chicago. Approximately 20 experts, mostly form the U.S., gave short presentations on various aspects of the topic and openly discussed views, opinions and presented results.
In the second phase of the meeting the participants broke into two groups to discuss in more detail sub-themes related to timing of emissions from bioenergy in LCA and GHG accounting. These sub-themes were:

  • metrics – what should we be estimating and how does this interface with socioeconomic metrics?
  • reference system – what should bioenergy be compared with?
  • No conclusive positions were reached, and to facilitate progress the group has a goal to develop discussion papers on these subjects and to meet again in association with the IEA Bioenergy Conference in Vienna.



    Working meeting programme


    Background: how timing is being incorporated into standards
    Annette Cowie, IEA Bioenergy Task 38 Management, National Centre for Rural Greenhouse Gas Research, Australia

    Choosing a criterion for biofuels and fuel policy
    Michael O´Hare, University of California at Berkeley, USA

    Assessing the forest based bioenergy GHG balance at different geographical and temporal scales
    Hannes Boettcher, IIASA, Austria

    The importance of tracking combined land carbon change effects of increased wood and agricultural biomass energy demand
    Ken Skog and Eric White, USDA Forests Products Laboratory, USA

    Goal definition, spatial and temporal system boundaries. How spatial scale is an integral part of temporal scales in LCA of bioenergy systems
    Keith Kline, ORNL, USA

    A short overview of the impact of land use change and/or management on the timing of emissions
    Sarah C. Davis, University of Illinois, USA

    Emissions from bioenergy, juggling and the usefulness of emission intensities
    David Neil Bird, IEA Bioenergy Task 38 Management, Joanneum Research, Austria

    The impact of uncertainty methodologies on dealing with time issues in LCA and GHG accounting
    Gregg Marland, Appalachian State University, USA

    Dynamic LCA approach applied to specific bioenergy case studies with cumulative radiative forcing and instantaneous temperature indicators
    Annie Levasseur, École Polytechnique de Montréal, Canada

    GWPs of biogenic CO2 from bioenergy: contributions from timing of CO2 fluxes and albedo.
    Applications to selected bioenergy systems (heat, biofuels, forest residues and delayed emissions)

    Francesco Cherubini, Norwegian University of Technology and Science, Norway

    GWP based indicators to describe the climate impacts of the wood product lifecycle
    Kim Pingoud, VTT, Finland

    Tuning the IPCC GWPs: Time Correction Factors & Time Adjusted Warming Potentials
    Alissa Kendall, University of California Davis, USA

    Some considerations LUC, iLUC, LUCCMe, and others
    Helena Chum,National Renewable Energy Laboratory, USA

    Policy makers view of the timing of emissions from bioenergy
    Matti Parrika, Swedish Energy Agency, Sweden


    List of Participants

    List of Participants (PDF)