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We construct and analyse a simple {\em reduced} model to study the effects ofthe interplay between a density undergoing an active-to-absorbing state phasetransition (AAPT) and a fluctuating environment in the form of a brokensymmetry mode coupled to the density field in any arbitrary dimension. We show,by using perturbative renormalisation group calculations, that {\em both} theeffects of the environment on the density and the latter's feedback on theenvironment influence the ensuing universal scaling behaviour of the AAPT atits extinction transition. Phenomenological implications of our results in thecontext of more realistic natural examples are discussed.

Active to absorbing state phase transition in the presence of a fluctuating environment: Feedback and universality