natural capitalism
 n.— «In the effort to create a greener economic system, some theorists—starting with University of Florida zoologist C.S. Holling—are seeking to define an economic value for nature. Costanza describes what he calls natural capitalism, defining capital as “a stock that yields a flow of valuable goods or services into the future.” He says the yield of new trees or fish from parent stocks should be counted as “natural income” and the parent stock itself considered “natural capital.”» —“Butterflies and the dismal science” by Robert Frenay Audubon Jan. 11, 1996. (source: Double-Tongued Dictionary)