Georgia Department of Education
Ga Virtual Learning: Populations, Biodiversity and Politics of Sustainability
Students explore the value of biodiversity, the impacts that humans are having on the Earth's biodiversity, and measures that can be taken to preserve biodiversity.
PBS
Pbs: Journey to Planet Earth: Urban Explosion
From the "Journey to Planet Earth" series, PBS takes a look at the world's exploding urban population. Includes video clips and educational resources.