Forests are not just collections of growing trees. A forest is a complex environment, home to thousands of intricately interconnected living species. This program explores three aspects of the forest: the amazing process of photosynthesis, by which plants collect solar energy and convert it into essential compounds; the role of forests in global weather and in maintaining the balance of the biosphere; and the threats to our forests. (23 minutes)

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		The Environment Every day, in every way, humans seem to find new ways to despoil our planet. This program takes a global look at such problems as PCBs and acid rain. In the end, breathtaking imagery enables us to visualize the meaning of the greenhouse effect and de...(more details)		DVD $99.95
		Preserving Forests Every year, millions of acres of forest are destroyed by fire, insects, and overcutting. This program looks at various ways in which forest management and science can help preserve forests: the battle against fire and insect pests; and the attempts t...(more details)		DVD $99.95

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