Who Ratifies Environmental Treaties and Why? Institutionalism, Structuralism and Participation by 192 Nations in 22 Treaties Author Roberts J.T., Parks B.C., Vásquez A.A. Date 2004 Source IUCN (ID: MON-084113) Publisher | Place of publication Massachusetts Institute of Technology | Boston, MA, US Pages 43 p. Document type Article in periodical Language English Field of application International Subject Environment gen. Keyword International agreement-implementation International relations/cooperation