Sustainable Food Production (FOOD90034)

Currently, there is more than sufficient food produced on a global scale to feed the population. This has been an upward trend throughout agricultural history, whereby humans have altered their cultivation habits to produce more. However, the continued rise in productivity is unlikely to continue under current systems within which resources are finite. The full impacts of this on a global scale are yet to be experienced by much of the population, largely in developed areas, although viability has dropped in many food producing systems due to increases in input costs of fuel, water, fertilizers and pest and disease control. Meanwhile, at the regional scale, food production systems are already found to be unsustainable with dropping productivity in previously fertile and highly productive areas. The reasons for the production declines are varied and complex, ranging from climate impacts to unsustainable cultivation methods leading to land degradation, reduced fertility and biodiversity required for healthy ecosystems. This subject will explore the biological issues contributing to the reduction of productivity we are currently observing in these fragile agricultural systems and explore the future issues that are likely to impact on systems thought to currently be more stable. We will thereby understand the components that contribute to sustainable food productivity and learn which of these are most unsustainable and will require future investment in systems change to maintain productivity.