When Perpetual is Not Forever: The Challenge of Changing Conditions, Amendment, and Termination of Perpetual Conservation Easements Author Jay J.E. Journal/Series Harvard Environmental Law Review | Vol.36 (1); 1-78; 78p. Date 2012 Source IUCN (ID: ANA-086412) Publisher | Place of publication Harvard Law School | Cambridge, MA, USA Document type Article in periodical Language English Country/Territory United States of America Subject Land & soil Keyword Land-use planning Private land