Topic: Conservation

America's Refuge

Posted Jan 23, 2007 in download Help

The Arctic National Wildlife Refuge in Alaska is open to the public for recreation — but there are no trails — and no visitor’s center. Learn more about what’s sometimes called America’s Refuge — on today’s Earth and Sky.

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Engineers have high hopes for

Posted Feb 2, 2007 in download Help
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A concept for a new fuel efficient airplane, with a unique “flying wing” shape, is being tested by engineers at Boeing, NASA and the U.S. Air Force …

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Expert: Water is a different kind of resource

Posted Feb 3, 2007 in download Help
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“And conservation couldn’t be more different between water and energy,” said Brad Udall, Director of the U.S. Western Water Assessment.

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Conservation Math

Posted Feb 3, 2007 in download Help

Biology, geometry and thermodynamics are all being used in a coordinated effort to make predictions about the environment. Conservation math — on today’s Earth and Sky.

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Crowded Planet Ecology

Posted Feb 3, 2007 in download Help

When looking at what affects a healthy natural ecosystem, some scientists are seeing a need to include human beings in nearly every picture. Ecology on a crowded planet — today on Earth and Sky.

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PROJECT LEARNING TREE® is an award winning Environmental Education program of the American Forest Foundation.

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Enhance learning in your classroom with correlated PLT lessons. Hundreds of correlations have been developed combining PLT's award winning PreK-12 Environmental Education curriculum and Earth & Sky's radio series.

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