The IUCN Green Status, which assesses species' population recovery and ecological functionality, was introduced after the IUCN Red List's launch in 1964.
Notes on verification
Confirmed by IUCN's own materials, peer-reviewed Oryx article, and Wikipedia; both dates and the descriptive purpose of Green Status align consistently across independent sources. [cascade flags: wikipedia_dropped_other_sources_exist | tier=unverified indep_score=0.3 clusters=2 claim_tier=notable] [rescored 2026-09-15: curated origin-host map (PR #65); unclassified hosts no longer scored as aggregators]
Sources
- Measuring black rhino recovery (seed:environment_and_wildlife)
- https://www.cambridge.org/core/journals/oryx/article/iucn-launches-green-status-of-species-a-new-standard-for-species-recovery/58A4EC78EE99C927B438B2703393A639 (corroboration)
- https://www.iucnredlist.org/about/green-status-species (corroboration)