Threshold

Definition

The level of magnitude of a system process at which sudden or rapid change occurs. A point or level at which new properties emerge in an ecological, economic or other system, invalidating predictions based on mathematical relationships that apply at lower levels.

Source

Contribution of Working Group II to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (2007). M.L. Parry, O.F. Canziani, J.P. Palutikof, P.J. van der Linden and C.E. Hanson (eds) Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.

Available at: https://www.ipcc.ch/report/ar4/wg2/

See also: Tipping Point

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