Hans Langeveld holds an MSc in tropical agronomy. After a career of 20 years of research in public institutions, he founded a private company for research on sustainable biomass (Biomass Research) in 2008. His major focus is on sustainable biomass production and its utilisation in biofuels and materials.

John Dixon is Principal Adviser, Research Programmes at the Australian Centre for International Agricultural Research (ACIAR) in Canberra, Australia.

Herman van Keulen was trained as a soil scientist and production ecologist at Wageningen University. During his career, he wrote many crop growth models. Herman developed innovative concepts in soil water modelling and sustainability research and has been an expert on crop growth, animal production systems and sustainable land use for over four decades. During his career, Herman was recognized internationally as a giant in his field. His knowledge of crop production around the world was encyclopaedic and his readiness to share his wisdom was a constant support for many around him.