Topic: Trees

Crown Fire

Posted Feb 3, 2007 in download Help
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Wildfire has a variety of ways it interacts with the landscape. Sometimes it can creep along or rage at breakneck speed. A scientist talks about what happens when fire soars into the dense crowns of trees — today on Earth and Sky.

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Disappearing Aspen

Posted Feb 3, 2007 in download Help

In mountainous areas, quaking aspens are among the most beloved of trees. But aspen trees are in trouble. Learn more about their decline in the U.S. — on today’s Earth and Sky.

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Drought Patterns

Posted Feb 3, 2007 in download Help

Some scientists think that in the late 16th century, the Plymouth colonists experienced a 20-year- long, coast-to-coast mega-drought. A scientist talks about tree rings and drought patterns — today on Earth and Sky.

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Ecology of Fear

Posted Feb 3, 2007 in download Help
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Ecology of Fear

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Emerald Ash Borer

Posted Feb 3, 2007 in download Help
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Ash trees are a common hardwood in North America. They’re often planted in cities because they can handle the stress and pollution. But there’s a new threat to ash trees — which we talk about on today’s Earth and Sky.

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About E&S Teachers Center

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

Project Learning Tree

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.

Browse the topics to the right to view the radio shows and activity correlations.

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