Social Groups and Human Interaction
Origins of Empires
Structures and Functions of Empires
Decline and Collapse of Empires
Human Impacts on Natural Environments
Population Change and Social Effects
Urban Systems and Sustainable Management
Economic Decision-Making and Production
Trade, Fairness and Global Exchange
Development and Standards of Living
Sustainable Use of Earth’s Resources
Renewable resources
Non-renewable resources
Risk and resilience
Environmental governance
Historical Perspectives and Changing Worldviews