Part 1 Analysis
1.Measuring methane emissions from livestock: Deli Chen, University of Melbourne, Australia;
2.Modelling methane emissions from livestock: Laurence Shalloo, Teagasc, Ireland;

Part 2 Breeding, animal husbandry and manure management
3.Improving selection for low methane-emitting livestock breeds: Yvette de Haas, Wageningen University, The Netherlands;
4.Quantifying the contribution of livestock health issues to the environmental impact of their production systems: Stephen G. Mackenzie, Trinity College Dublin, Ireland; and Ilias Kyriazakis, Queen's University of Belfast, UK;
5.Improving livestock manure collection, storage and separation: Barbara Amon, Leibniz Institute for Agricultural Engineering, Germany;
6.Developments in anaerobic digestion to optimise use of livestock manure: Yongzhong Feng, Northwest A&F University, China;

Part 3 Nutrition
7.The impact of improving feed efficiency on the environmental impact of livestock production: James Drackley, University of Illinois, USA;
8.Improving grassland/forage quality and management to reduce livestock greenhouse gas emissions: Michael O'Donovan, Teagasc, Ireland;
9.The use of feed supplements to reduce livestock greenhouse gas emissions: plant bioactive compounds: Cecile Martin, INRA, France;
10.The use of feed supplements to reduce livestock greenhouse gas emissions: direct-fed microbials: Catherine Stanton, Teagasc, Ireland;
11.Modifying the rumen environment to reduce livestock greenhouse gas emissions: Tim McAllister, Agriculture and Agri-Food Canada, Canada;