Question:  The UN Environment World Conservation Monitoring Centre was previously an independent organization jointly managed by IUCN, UNEP and a non-governmental organization founded in what year?
Sentence (from "World Conservation Monitoring Centre"): The World Conservation Monitoring Centre was previously an independent organization jointly managed by IUCN, UNEP and WWF established in 1988, and prior to that the Centre was a part of the IUCN Secretariat.
Relevant evidence: Yes