How is sustainability defined for a society and its environment? This unit includes on-location demonstrations of best-practice eco-sustainable activities.

Originally released by PBS, 2009. Streaming video file encoded with permission for digital streaming by Infobase on June 01, 2018.

State of Sustainability (4:05); --Urban Ecosystems (4:57); -- Understanding Sustainability (6:50); -- Credits: Towards a More Sustainable Community: Part 2 - Understanding Sustainability (0:10); .