This work considers the conceptual assumptions related to the sphere of sustainability, and presents insights into the topic of resilience in this regard. It utilizes critical and logical-analytical methods, typical of philosophical disciplines, contemplating in a creative and original way various theories related to different issues connected with sustainability and resilience. The book critically examines theoretical approaches to sustainability, which are particularly evident in environmental law, bringing them into discussion with a new vision of sustainability, increasingly close to emergency scenarios. Sustainability law has grown recently, though discussions about its qualifications and its practical operations have also emerged. The book illustrates a new theoretical possibility concerning the study of resilience in this regard, criticizing some preexisting categories, and providing a new innovative, clear and linear vision of the topic.