Is an appeal moot when, through no fault of the appellant, an event occurs which makes it impossible for the reviewing court to provide any effective relief to the appellant even when ruling in the appellant's favor?

An appeal is moot when, through no fault of the appellant, an event occurs which makes it impossible for the reviewing court to provide any effective relief to the appellant even when ruling in the appellant's favor. (Paul v. Milk Depots, Inc. (1964) 62 Cal.2d 129, 132.) In such a situation the appeal shall be dismissed. (Ibid.) It is long settled that the duty of a court "is to decide actual controversies by a judgment which can be carried into effect, and not to give opinions upon moot questions or abstract propositions, or to

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