March 16, 2009 – Ecosytems, Soil Exhaustion and Soil Toxins, Tom Atzet

Ecosytems, Soil Exhaustion and Soil Toxins

Rivers that Cut Through Mountains

Tom Atzet, PhD (Merlin, OR), Regional Ecologist, “Soil Exhaustion, Climate Change, Toxic Materials and Hunger”.

Art Bernstein (Gold Hill, OR), “The Columbia, Potomac and San Joaquin: Rivers that Cut Through Mountain Ranges”.

Categories: 2009, Guest Summaries

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