Option A Freshwater - Drainage basins1: Drainage basin hydrology and geomorphology2: Flooding and flood mitigation3: Water scarcity and water quality4: Water management futuresOption B Oceans and coastal margins1: Ocean-atmosphere interactions2: Interactions between oceans and the coastal places3: Managing coastal margins4: Ocean management futuresOption C Extreme environments1: The characteristics of extreme environments2: Physical processes and landscapes3: Managing extreme environments4: Extreme environments' futuresOption D Geophysical hazards1: Geophysical systems2: Geophysical hazard risks3: Hazard risk and vulnerability4: Future resilience and adaptationOption E Leisure, tourism and sport1: Changing leisure patterns2: Tourism and sport at the local and national scale3: Tourism and sport at the international scale4: Managing tourism and sport for the futureOption F The geography of food and health1: Measuring food and health2: Food systems and the spread of disease3: Stakeholders in food and health4: Future health and food security sustainabilityOption G Urban environments1: The variety of urban environments2: Changing urban systems3: Urban environmental and social stresses4: Building sustainable urban systems for the futureUnit 1 Changing population1: Population and economic development patterns2: Changing populations and places3: Challenges and opportunitiesUnit 2 Global climate - vulnerability and resilience1: The causes of global climate change2: The consequences of global climate change3: Responding to climate changeUnit 3 Global resource consumption and security1: Global trends in consumption2: Impacts of changing trends in resource consumption3: Resource stewardshipUnit 4 Power, places and networks1: Global interactions and global power2: Global networks and flows3: Human and physical influences on global interactionsUnit 5 Human development and diversity1: Development opportunities2: Changing identities and cultures3: Local responses to global interactionsUnit 6 Global risks and resilience1: Geopolitical and economic risks2: Environmental risks3: Local and global resilience.