On May 20th, during the International Union for the Conservation of Nature’s (IUCN) 83rd meeting, held at Gland, Switzerland, the categories and criteria for the identification of threatened ecosystems and the creation of Red Lists of Ecosystems were officially adopted. The criteria are described in Keith et al (2013).
This marks the end of a process that started in 2007, led by Jon Paul Rodríguez and David Keith (UNSW), with contributions by many including Ed Barrow (IUCN), Katherine Rodríguez-Clark, Tracey Regan and me.
For the full history and article on the IUCN Red List of Ecosystems website, follow this link.