Global Critical Habitat Screening Layer

Methodology
The composite Critical Habitat layer draws on 20 global-scale datasets, of which 12 datasets support screening of Critical Habitat in the terrestrial realm and 15 datasets support screening in the marine realm. Datasets were disaggregated into subsets if the underlying attributes aligned with different Critical Habitat criteria.

The raster layer attributes each grid cell (1x1 km) as likely or potential Critical Habitat, or unclassified based on a classification scheme reflecting biodiversity data layer alignment with IFC-PS6 Critical Habitat criteria/scenarios and inherent degree of certainty (in terms of presence on the ground).
Data description
The International Finance Corporation’s (IFC’s) Performance Standard 6 (PS6) is one of the most influential biodiversity standards of current time, particularly within large-scale infrastructure and the extractive sector. Within PS6, biodiversity significance is articulated through the concept of “Critical Habitat,” a definition developed by the IFC and detailed through criteria aligned with those that support internationally accepted biodiversity designations. Critical Habitat criteria identify habitats of significant importance to threatened, endemic, congregatory and migratory species, threatened or unique ecosystems, and key evolutionary processes. PS6 requires projects to achieve net gains in the biodiversity values for which Critical Habitat is identified. The global screening layer has been developed to assess the likelihood of sites or operations being located within PS6-defined Critical Habitat in the early project scoping phases. This screening layer shows the global spatial distribution of likely or potential Critical Habitat, as defined by the International Finance Corporation's Performance Standard 6 (IFC PS6) criteria.
Indicator
Potentially disappeared fractions of species (PDF) - Water stress
Method / tool
IMPACT World+
Author
UNEP