Red List Index

The Red List Index (RLI) allows countries to track their progress towards targets for reducing biodiversity loss shows trends in overall extinction risk for species. It is based on changes in the number of species in each category of extinction risk on the IUCN Red List of Threatened Species. A value of 1 equates to all species qualifying as least concern, i.e., not expected to become extinct in the near future. A value of 0 equates to all species having gone extinct. -—
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