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The Habitable Planet: Effect of Human Activites

he Habitable Planet: A Systems Approach to Environmental Science is a course for high school teachers and undergraduate students in environmental science. The content course will help teachers of biology, chemistry, and Earth science to provide more content in their classes. The course components include 13 half-hour video programs, a coordinated Web site which includes the streamed video programs, the course text online, five interactive simulations, background on the scientists who created the content and those whose research is documented, a professional development guide (also available in print form), and additional resources. The course explores the effect that human activities have on the different natural systems. Topics include human population growth and resource use, increasing competition for fresh water, and climate change. 

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Not Right For WatchKnowLearn
Ages: 18 - 18
2534 Views:
Human Population Dynamics
From learner.org, produced by Harvard Smithsonian Center for Astrophysics
The human population of our planet now exceeds 6.5 billion and is rising. Much of this growth is projected for the most environmentally fragile regions of the world. Will studying the history of the world's population growth help predict the Earth's ... [more]
March 16, 2010 at 10:09 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2430 Views:
Biodiversity Decline
From learner.org, produced by Harvard Smithsonian Center for Astrophysics
Species are being lost at a rapid rate in rainforests and coral reefs. Yet many species still have not been discovered. Tropical scientists struggle to keep ahead of the bulldozers as they work to understand this complex ecosystem. And an ocean biolo... [more]
March 16, 2010 at 10:13 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2414 Views:
Looking Forward: Our Global Environment
From learner.org, produced by Harvard Smithsonian Center for Astrophysics
Earth's essential systems are being stressed in many ways. There are many tipping points in the environment, beyond which there could be serious consequences. Will human ingenuity, resiliency, and cooperation save us from the worst outcomes of our gl... [more]
March 16, 2010 at 10:18 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2376 Views:
Earth's Changing Climate
From learner.org, produced by Harvard Smithsonian Center for Astrophysics
Tropical glaciers are the world's thermometers; their melting is a signal that human activities are warming the planet. A California project tries to predict whether natural ecosystems will be able to absorb enough additional carbon dioxide from the ... [more]
March 16, 2010 at 10:16 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2365 Views:
Water Resources
From learner.org, produced by Harvard Smithsonian Center for Astrophysics
While essential to the lives of humans and animals, fresh water only accounts for six percent of the world's water supply. Scientists in Florida's Everglades and the water challenged Southwest consider the optimum use of existing sources of fresh wat... [more]
March 16, 2010 at 10:12 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2357 Views:
Risk, Exposure and Health
From learner.org, produced by Harvard Smithsonian Center for Astrophysics
We all require food, air, and water to survive — which are contaminated to some extent by man-made pollutants. Two studies, one in a rural western mining town and another in a dense urban population, reveal how these exposures impact health, and what... [more]
March 16, 2010 at 10:10 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2356 Views:
Atmospheric Pollution
From learner.org, produced by Harvard Smithsonian Center for Astrophysics
Once released, air pollutants react chemically with each other under solar radiation to become even more dangerous secondary pollutants. A company in the Northeast U.S. tracks the emission of pollutants at street level, while an international long-te... [more]
March 16, 2010 at 10:15 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2340 Views:
Agriculture
From learner.org, produced by Harvard Smithsonian Center for Astrophysics
Will world population outrun food resources? The "Green Revolution" of the 20th century multiplied crop yields, in part through increasing inputs of pesticides and fertilizers. How can farmers reduce their use of agricultural chemicals and still prod... [more]
March 16, 2010 at 10:11 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2304 Views:
Energy Challenges
From learner.org, produced by Harvard Smithsonian Center for Astrophysics
Global energy use increases by the day. Polluting the atmosphere with ever more carbon dioxide is not a viable solution for our future energy needs. Can new technologies such as carbon sequestration and ethanol production help provide the energy we n... [more]
March 16, 2010 at 10:14 PM
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