Deforestation threatens species with shrinking habitats, extinction
Earth is expected to play host to more than 9 billion people by 2050
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About the show
"Planet in Peril" examines the environmental conflicts between growing populations and natural resources.

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Tracking wolves in Yellowstone
For Educators
Use these in-depth research activities and videos to help students understand the issues facing our planet. Want more free educator materials? Go to CNN Student News

• Activities: Planet in Peril | Climate change | Deforestation | Species loss | Overpopulation | Quiz | Questions

• Videos: Global warming | Deforestation | Species loss | Overpopulation
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