"Hawkill DVD program"--on video case. Includes guide in container.

What is the biosphere? -- Earth is born -- Life begins -- Miller Experiment -- Natural selection -- Photosynthesis begins -- Time scales -- Gaia -- Biosphere today -- Homeostasis -- Greenhouse Effect -- Plants and atmosphere -- Global Warming -- Cycling of elements -- Oxygen-Carbon Dioxide cycle -- Nitrogen cycle -- Ozone -- Henry David Thoreau -- Howard Odum -- Naturalist tradition -- Francis Bacon -- Charles Darwin -- Natural selection -- Spaceship Earth -- Quantitative science -- 19th century America -- Aldo Leopold -- Rachel Carson -- What is ecology? -- Energy flow -- Energy pyramids -- Food chains -- Recycling of matter -- Different ecosystems -- Environmental problems -- Acid rain -- Global warming.

Part one presents a history of how concepts came to be. Part two presents a clear picture of what we know about the ecosystems and about the biosphere today.

DVD.