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About RLE

Having a reference system that contributes to promoting good ecosystem management and helps guarantee their health is a fundamental aspect for humanity’s well-being. This includes mitigation of risks from natural disasters and adaptation to climate change, among other factors, as highlighted in the Millennium Ecosystem Assessment.

This important need is being addressed by the IUCN Red List of Ecosystems initiative, bringing together world experts and practitioners to develop, test and communicate a standardized yet flexible system.

Adoption of such a standardized system by the global conservation community, allows for objective, transparent and repeatable assessments of ecosystem collapse risk. These assessments are scientifically comparable, allowing assessors from different parts of the world and at different geographical scales to systematically compare their results.

For a better understanding of this initiative and its applications we invite you to explore:

  • The Context for developing an ecosystem collapse risk assessment protocol.
  • What is the Red List of Ecosystems?
  • The Ongoing initiatives leading to the 2025 target of achieving global coverage of ecosystem risk assessments (terrestrial, freshwater, marine and subterranean).

IUCN Red List of Ecosystems


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