Anticipating and responding to biological complexity in the effects of climate change on agriculture

The effects of climate change on biological systems are complex. This is particularly apparent for multispecies systems such as plant diseases and plant-herbivore interactions where climate can affect each species individually as well as influencing the interactions between species. This article was presented in Copenhagen as part of the conference on Climate Change: Global Risks, Challenges and Decisions, held 10-12 March 2009.