Climate Attribution Science is "a scientific process for establishing the principal causes or physical explanation for observed climate conditions and phenomena."
 

•attribution requirements for a detected change are:
 

•a demonstrated consistency with a combination of anthropogenic (aka “intentional, non-malicious behavior by humans that nonetheless harms the environment”) and natural external forcings

•an inconsistency with "alternative, physically plausible explanations of recent climate change that exclude important elements of the given combination of forcings."