Srinivasan, U Thara The debt of nations and the distribution of ecological impacts from human activities. [electronic resource] - Proceedings of the National Academy of Sciences of the United States of America Feb 2008 - 1768-73 p. digital Publication Type: Comparative Study; Journal Article ISSN: 1091-6490 Standard No.: 10.1073/pnas.0709562104 doi Subjects--Topical Terms: AgricultureClimateConservation of Natural ResourcesDeveloped Countries--economicsDeveloping Countries--economicsEnvironmentGreenhouse EffectHumansOzone--metabolismPoverty