Deep uncertainty (Q471)
Subject, term, tag: Deep uncertainty
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Deep uncertainty |
Subject, term, tag: Deep uncertainty |
Statements
IPCC Glossary v1.5
1 reference
27 May 2026
A situation of deep uncertainty exists when experts or stakeholders do not know or cannot agree on: (1) appropriate conceptual models that describe relationships among key driving forces in a system, (2) the probability distributions used to represent uncertainty about key variables and parameters and/or (3) how to weigh and value desirable alternative outcomes (Lempert et al., 2003). (English)
IPCC Glossary v1.5
1 reference
27 May 2026