Air Pollution & Lichens: A Tour of the Columbia River Gorge
Linda Geiser, an ecologist for the USDA Forest Service, takes us on a tour of the Columbia River Valley, to show us how air pollution impacts lichens, and what we can learn by observing lichens in certain areas.
Видео Air Pollution & Lichens: A Tour of the Columbia River Gorge канала Forest Service
Видео Air Pollution & Lichens: A Tour of the Columbia River Gorge канала Forest Service
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