Kennedy, Christopher Comment on article "is there a metabolism of an urban ecosystem?" by Golubiewski. [electronic resource] - Ambio Nov 2012 - 765-6; discussion 767-8 p. digital Publication Type: Journal Article; Comment ISSN: 0044-7447 Standard No.: 10.1007/s13280-012-0314-1 doi Subjects--Topical Terms: EcosystemUrbanization