This learning module aims to engage students in problem solving, critical thinking, scientific inquiry, and cooperative learning. The module is appropriate for use in any introductory or intermediate undergraduate course that focuses on human-environment relationships. The module introduces the complexities in the relationships among environmental hazards and global changes. It presents five key concerns for geographers: (1) are societies becoming more vulnerable to environmental hazards and disasters?; (2) what social and physical factors influence changes in human occupance of hazard zones?; (3) how do people respond to environmental hazards and what accounts for differential adjustments and adaptation?; (4) how do societies mitigate the risk of environmental hazards and prepare for future disasters?; and (5) how do local risks and hazards become the driving forces behind global environmental changes? The module contains 11 tables, 2 figures, a guide, a summary, an overview, a glossary, references for all units, extensive supporting materials, and appendixes (selected Internet/WWW Hazards sites, selected readings on disasters and mitigation, and suggested readings). It is divided into thematically coherent units, each of which consists of background information, teaching suggestions, student worksheets, and the answers expected for each activity. (BT)