Uncertainty

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The definitions below refer to Adaptation to Climate Change.

Definitions

European Definitions

RESIN project

The RESIN project [1] gives the following definition:

A state of incomplete knowledge that can result from a lack of information or from disagreement about what is known or even knowable. [2]


Other International Definitions

National Definitions

Germany

Uncertainty can result from lack of information or from divergent opinions about what is or can be known. [3]

There may be many causes of uncertainty: faulty data, ambiguous concepts and terminology, or uncertainty about how people will behave. Uncertainty may be expressed in figures – for example where different climate models arrive at different forecasts about the rise in temperature. however, uncertainty may also be a qualitative statement by a team of experts.

United Kingdom (UK)

Uncertainty ia situation where the current state of knowledge is such that (1) the order or nature of things is unknown, (2) the consequences, extent, or magnitude of circumstances, conditions, or events is unpredictable, and (3) credible probabilities to possible outcomes cannot be assigned. [4]



Standard Definition

Discussion Topic

See also

Notes

  1. http://www.resin-cities.eu/
  2. Mach, K.J., S. Planton and C. von Stechow (eds.). Climate Change 2014: Synthesis Report. Contribution of Working Groups I, II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. Annex II: Glossary. [Core Writing Team, R.K. Pachauri and L.A. Meyer (eds.)]. IPCC, Geneva, Switzerland, pp. 117-130.
  3. Combating Climate Change: The German Adaptation Strategy
  4. The National Adaptation Programme: Making the country resilient to a changing climate, UK Government (2013)

References