quotes about Ecological
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To be economical agriculture must be ecological.
-- Charles Walters -
Ecological differentiation is the necessary condition for coexistence.
-- Garrett HardinSource : Garrett James Hardin (1961). “Biology, its principles and implications”
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In the global marketplace of the future the price of every product will tell the ecological truth.
-- Kalle Lasn -
Birds are an ecological litmus paper.
-- Roger Tory Peterson -