The Convenors were: Hans Langeveld (The Netherlands), Catherine Macombe (France), Rym Ben Zid (Tunisia) and Willem Brandenburg (The Netherlands).

H. Langeveld, C. Macombe and P. Roux. GHG emission reduction and energy production in agriculture, forestry, aquaculture and mariculture: Potentials and impact, pp. 655-657.

Paper presentations

A. Benoist, D. Dron and A. Zoughaib. A relevant LCA methodology adapted to biomass-based products, pp. 659-666.

K. Hayashi, H. Kato. Ecological-economic assessment of farms using multi-input multi-output models: Life cycle assessment and extension, pp. 667-674.

K. Kägi, S. Deimling, R. Freiermuth Knuchel, G. Gaillard, T. Hölscher and K. Müller-Sämann. Environmental impacts of annual and perennial energy crops compared to a reference food crop rotation, pp. 675-681.

A. Rengel. Promising technologies for biodiesel production from algae growth systems, p. 683-692.

J.-L Fiorelli, J.-L. Drouet, S. Duretz, B. Gabrielle, A.-I. Graux, V. Blanfort, M. Capitaine, P. Cellier and J.-F. Soussana. Evaluation of greenhouse gas emissions and design of mitigation options: A whole-farm approach based on farm management data and mechanistic models, pp. 693-701.

K. Mar Cho and J. Nettleton. Biofuels industry development in New York City and the Mid-Hudson, pp. 703-711.

K. Usva, J.-M. Katajajuun and J. Grönroos. Greenhouse gas emissions and other environmental impacts and related improvement options of broiler production chain, pp. 713-722.

M. Mikkola and H. Risku-Norja. Institutional consumers' views of GHG emission reduction by optional milk systems within sustainability frame, pp. 723-733.

H. Langeveld, G. van de Ven, S. de Vries, L. van den Brink and C. de Visser. Ethanol from sugar beet in The Netherlands: Energy production and efficiency, pp. 735-742.

S. de Vries, K. Giller, M. van Ittersum and G. van de Ven. Comparing biofuel cropping options by means of sustainability indicators, pp. 743-753.

M. Benoit and G. Laignel. Sheep for meat farming systems in French semi-upland area. Adapting to new context: Increased concentrates and energy prices, and new agricultural policy, pp. 755-764.

S. Defrijn, E. Mathijs, H. Gulinck and L. Lauwers. Facilitating and evaluating farmer innovations towards more sustainable energy and material flows: Case-study in Flanders, pp. 765-773.

Poster presentations

M. Pradel and F. Thirion. Environmental and energetic approaches of fertilising practices: Comparison of four spreading practices with LCA tool, pp. 775-777.

D. Borrego. Biofuels in Portugal and the new challenges for the rural world, pp. 779-781.