Sustainability in the 21st Century

Examines the concept of sustainability, the capacity to provide for the needs of the world's current population without harming the ability of future generations to provide for themselves. Learn about factors that can affect sustainability such as carrying capacity, population density, and ecological footprint. Also explore some of the challenges and successes of sustainability in the rainforest, one of the world's most diverse habitats. Observe sustainability in action at a school that has employed green building practices and in a community that has used smart growth policies to combat suburban sprawl.