Will harvesting trees for energy benefit forests?
Posted Mar 31, 2009 in Biodiversity, Energy, Forests, Trees download Help
Janaki Alavalapati, head of the Department of Forestry at Virginia Tech, speaks on how harvesting biomass – trees and plants – for fuel might improve the health of forests.
Related PLT Activities
- PreK-8 Guide
- Energy and Society (PreK-8)
- The Changing Forest: Forest Ecology (9-12)
- Exploring Environmental Issues: Focus on Forests (9-12)
- Exploring Environmental Issues: Biodiversity (9-12)
- Global Connections: Forests of the World
The renewable energy potential of forests
Posted Mar 31, 2009 in Energy, Forests, Trees download Help
Hear Janaki Alavalapati talk about how forest biomass – small diameter trees and brush cleared from forests – can be used to create liquid fuel.
Related PLT Activities
- PreK-8 Guide
- Energy and Society (PreK-8)
- The Changing Forest: Forest Ecology (9-12)
- Exploring Environmental Issues: Focus on Forests (9-12)
- Global Connections: Forests of the World
Will forest industry benefit from biofuel?
Posted Mar 31, 2009 in Energy, Forests, Trees download Help
Forest scientist Janaki Alavalapati talks about how a forest-based energy industry might boost rural economies.
Related PLT Activities
- PreK-8 Guide
- Energy and Society (PreK-8)
- The Changing Forest: Forest Ecology (9-12)
- Exploring Environmental Issues: Focus on Forests (9-12)
- Global Connections: Forests of the World
Global warming's effect on plants
Posted Dec 1, 2008 in Biodiversity, Climate and Weather, Conservation, Environmental Impact, Global Climate Change, Habitats, Plants, Trees download Help
Ecologists have shown that as Earth’s climate changes, so do communities of plants and animals. But can plants and animals change climate? Climate feedbacks — today on Earth and Sky.
Related PLT Activities
- PreK-8 Guide
Mimicing global warming in Colorado meadow
Posted Dec 1, 2008 in Air Quality, Climate and Weather, Environmental Impact, Global Climate Change, Habitats download Help
For 14 years, scientists have been artificially heating up parts of a Colorado meadow. How a big project is helping to answer big questions about climate change and ecosystems — today on Earth and Sky.
Related PLT Activities
- PreK-8 Guide
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