La ricerca di una nozione giuridica di ambiente e la complessa individuazione del legislatore competente

This paper aims to provide a picture of the current division of environmental competences, analyzing the constitutional case law on this subject in the light of the doctrinal debate that has concerned the search for the legal notion of environment, since the theoretical approach adopted conditions the extension of the competences of the two levels of government. The intention is also to give an account of the effective distribution of environmental competences also thanks to other aspects, such as regional legislative production and constitutional litigation, which provide clear elements in the sense of the multilevel perspective of the environmental discipline and the role that the principle of loyal collaboration could play.