Climate change effects on biogeochemical cycles, nutrient and water supply / Pascal A. Niklaus -- Nutrient and water demands of plants under global climate change / Oula Ghannoum, Matthew J. Searson and Jann P. Conroy -- Climate change and symbiotic nitrogen fixation in agroecosystems / Richard B. Thomas, Skip J. Van Bloem and William H. Schlesinger -- Belowground food webs in a changing climate / Joseph C. Blankinship and Bruce A. Hungate -- Herbivory and nutrient cycling / R. Andrew Carran and Vincent Allard -- Sustainability of crop production systems under climate change / J¿rg Fuhrer -- Plant performance and implications for plant population dynamics and species composition in a changing climate / Grant R. Edwards and Paul C.D. Newton -- Climate change effects on fungi in agroecosystems / Matthias C. Rillig -- Trophic interactions and climate change / Jonathan A. Newman -- Future weed/pest/disease problems for plants / Lewis H. Ziska and G. Brett Runion -- Distinguishing between acclimation and adaptation / Mark J. Hovenden -- Plant breeding for a changing environment / Paul C.D. Newton and Grant R. Edwards.