Sensitivity Tests
Measuring how and why nature is changing is critical, but also difficult. Biodiversity data are patchy and biased towards certain regions and taxonomic groups. All indicators that track the state of nature at a global scale measure different facets of biodiversity, and they all show a decline.
Each indicator, including the LPI, comes with its own set of caveats and sensitivities, which have been described in the scientific literature. To ensure each iteration of the LPI is as robust as it can be, the index is stress-tested, as reported on the LPI website (www.livingplanetindex.org).
Please note that the trends presented in this section are all unsmoothed (included the global trend) to allow for comparison between direct outputs of the sensitivity tests presented.