This video provides a comprehensive overview of strategies to combat water pollution, focusing specifically on the Chesapeake Bay watershed. It distinguishes between two primary approaches: prevention (keeping pollution out) and removal (cleaning pollution up). The host explains how nutrient pollution creates 'dead zones' that harm aquatic life and disrupt local economies, using real-world examples to illustrate the connection between human activities and environmental health. The content explores specific technologies and methods for each strategy. For prevention, it covers individual actions like managing pet waste and large-scale engineering solutions like permeable pavement and buffer strips. For removal, it discusses dredging, floating barriers, and biological treatments. The video emphasizes the challenges of cleaning moving water and explains why prevention is generally considered the 'gold standard' in environmental management. This resource is highly valuable for teaching environmental science, ecology, and critical thinking. It moves beyond simple definitions to explore the complexities of environmental decision-making, asking students to consider cost-benefit analyses and the competing needs of various stakeholders such as farmers, fishers, and local governments. It sets the stage for discussions on sustainability and civic responsibility.