Climate Change Effects of Biomass and Bioenergy Systems

Vienna, Austria 2012 – Timing

Impact of timing of GHG emissions

Task38 Expert Working Meeting at
Orangerie Schloß Schönbrunn, Vienna, Austria, November 16th –17th, 2012

 Organized by

Task 38 – Greenhouse Gas Balances of Biomass and Bioenergy Systems

Objectives of the working meeting

The workshop brought together researchers with expertise in quantifying the climate change mitigation value of bioenergy and reforestation, and experts on including time in LCA and carbon footprinting. Latest research on these topics were presented and discussed. 25 experts from all over the world participated.
In the second phase of the meeting the participants broke into two groups to discuss and prepare draft papers  of two sub-themes related to timing of emissions from bioenergy in LCA and GHG accounting. These sub-themes are:

  • The Role of Timing in Impact Assessment of Bioenergy (draft paper 1)
  • Reference Systems  for evaluating climate effects of bioenergy (draft paper 2)

Papers are under development.


Expert Working meeting programme –

Welcome – Annette Cowie, Rural Climate Solutions, Australia, IEA Bioenergy Task38 Co-Task Leader
and Neil Bird, JOANNEUM Research, Austria, IEA Bioenergy Task38 Task Leader

Meeting objectives – Neil Bird, JOANNEUM Research, Austria

Bioenergy carbon accounting: a literature review – Alessandro Agostini, EC, Joint Research Centre –
Institute for Energy and Transport, Petten, the Netherlands

Dealing with time in LCA and carbon footprinting – current approaches, focus on bioenergy –
Annette Cowie, Rural Climate Solutions, Australia

A summary of modeling requirements to assess the climate change impacts of bioenergy systems – 
Annie Levasseur, CIRAIG, École Polytechnique de Montréal, Canada

Risk charges, uncertainty and effect on dealing with time issues –
Eric Marland, Appalachian State University, Mathematical Sciences, USA

Baseline time accounting: Considering global land use dynamics when estimating the climate impact of indirect land use change caused by biofuels –
Jesper Kloverpris, Novozymes A/S, Denmark

Time-dependence of bioenergy emission intensities and strategies to reduce pay-back times –
Neil Bird, JOANNEUM Research, Austria

The time aspect of bioenergy – Climate impacts of bioenergy due to how fast combustion related emissions are compensated by uptake of atmospheric CO2 –
Lars Zetterberg, IVL Swedish Environmental Research Institute

Quantifying Greenhouse Gas Emissions by their Climate-Change Impact Potentials –
Miko Kirschbaum, Landcare Research, New Zealand

Climate impacts of bioenergy: issues of scale – 
Francesco Cherubini et al., Norwegian University of Science and Technology, Norway

Land use in life cycle assessment of greenhouse gas emissions – 
Tuomas Helin et al. VTT Technical Research Centre of Finland

Timing of Emission Reduction through Forest-based Bioenergy Substituting for Fossil Energy –
Josef Spitzer, IEA Bioenergy, Austria

Tools for GHG Emissions Timing Characterization and Life Cycle Inventory Needs – 
Alissa Kendall, University of California Davis, USA

Bioenergy in the Dutch energy system, now and in the future –
Jan Ros, Netherlands Environmental Assessment Agency, Netherlands


List of Participants

List of Participants (PDF)