This title is licensed for public performance by the MPLC umbrella license. Examine the planet's wilderness areas and study humankind's impact on these nearly pristine ecosystems. From the Colorado River to Bialowieza, one of Europe's last primeval forests, the program observes how logging, pollution, and overpopulation disrupt many habitats and ultimately harm human societies. An overview of the climate change debate considers the planet's future in the face of rising global temperatures. (2 DVDs; one disc is teacher resources).