David Parsons is Professor in Crop Sciences (with focus on grass and forage) at the Institute for Agricultural Research in Northern Sweden, at SLU. He has experience as a researcher, as an agronomist in private industry, and as a government development and extension officer. David conducts research in the areas of farming systems, crop-livestock systems, whole farm modelling, system dynamics, crop modelling, forage agronomy, and climate change adaptation. David currently leads research projects in sustainable beef cattle production, efficient use of protein sources in dairy systems, whole farm modelling, and forage agronomy.