Offsets Under § 111 of the Clean Air Act: The Inconvenient Need for Additionality and the Role of Super-Categories Author Herzog R.B., Fels N.W. Journal/Series The Environmental Law Reporter ELR News & Analysis | Vol. 43(3), p.10257-10268 Date 2013 Source IUCN (ID: ANA-087344) Publisher | Place of publication Environmental Law Institute | Washington,DC,USA ISSN 10355-10428 Document type Article in periodical Language English Country/Territory United States of America Subject Air & atmosphere Keyword Emissions trading Emissions