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Greenhouse Effect Video

Earth has experienced temperature changes before. However, in our planet's distant past, the cycles of warming and cooling occurred over tens of thousands of years, not hundreds. This video segment adapted from NOVA/FRONTLINE examines the greenhouse effect and Earth's climate.

The web page is located within Teachers'Domain, an online educational resource produced by WGBH Boston. It has two related components ? collections and courses ? that help teachers enhance their students' learning experiences and advance their own teaching skills. The Teachers' Domain collections include classroom-ready multimedia resources for use in lessons or independent study. Registration is free for everyone (teachers, students, parents).