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Detection and Attribution (D&A) of
human-induced climate change
Fingerprint of human-induced climate change searched for, in observations
‘Detection’ of climate change is ‘the process of demonstrating that climate or a system affected by climate has changed in some defined sense, without providing a reason for that change’.
‘Attribution’ is ‘the process of evaluating the relative contribution of multiple causal factors to a change or event with an assignment of statistical confidence’.
Source : IPCC, (2007)