Topic: Water
In Knowles Creek, in Oregon, wild coho salmon numbers have dwindled. What’s unusual here is the lack of what typically has a negative impact on coho — dams and industry. Learn more about a project to restore salmon — on today’s Earth and Sky.
Related PLT Activities
- PreK-8 Guide
- Exploring Environmental Issues: Focus on Forests (9-12)
At the beginning of the 20th century, coastal areas had an abundance of oysters, lobsters, and fish. But the beaches might seem more deserted now. A scientist talks about marine biomass — today on Earth and Sky.
Related PLT Activities
- PreK-8 Guide
- Exploring Environmental Issues: Focus on Risk (9-12)
- Exploring Environmental Issues: Places We Live (9-12)
Seattle has developed an innovative way to control storm water runoff that helps protect critical habitat for salmon and other wild creatures. Drainage systems that mimic nature — today on Earth and Sky.
Related PLT Activities
- PreK-8 Guide
- The Changing Forest: Forest Ecology (9-12)
- Exploring Environmental Issues: Focus on Forests (9-12)
- Exploring Environmental Issues: Focus on Risk (9-12)
In the early 1900s, mountain runoff destined for California’s Owens Lake was diverted to Los Angeles. By the 1920s, the lakebed was dry — a source of dust pollution. Learn how Owens Lake is undergoing a renaissance — today on Earth and Sky.
Related PLT Activities
- PreK-8 Guide
- Exploring Environmental Issues: Places We Live (9-12)
On this date five years ago, the United Nations declared that the world’s human population had reached six billion. Today — Paul Ehrlich talks about water issues and a growing population — on Earth and Sky.
Related PLT Activities
- PreK-8 Guide
- Exploring Environmental Issues: Focus on Risk (9-12)
- Exploring Environmental Issues: Places We Live (9-12)
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PROJECT LEARNING TREE® is an award winning Environmental Education program of the American Forest Foundation.
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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