Food security (Edexcel GCSE Biology): Flashcards

Sufficient, safe, nutritious food meeting dietary needs

Overuse of land and resources

Overfishing

Resource-intensive diets (higher meat consumption)

Reduce yields & increase production costs

Droughts, floods, unpredictable weather reduce yields

Improve yields, reduce waste, manage resources efficiently

Less energy and biomass at each level

Carbon dioxide ($CO_2$)

Global temperatures rise

Meeting needs without affecting future generations' ability

Biofuels (e.g., bioethanol)

Takes up land that could grow food crops

Populations lack resistance to new diseases

Break down waste/dead organisms, recycle elements to soil/air