This is explored through analysis of several questions: what is an ecosystem approach and how could it be implemented; how can economic evaluation of ecosystem services contribute to the debate; to what extent is environmental law fragmented and how does this affect the implementation of the ecosystem approach; to what extent does environmental law contain administrative discretion and how does this affect the implementation of the ecosystem approach; is there a need for greater consistency, coherence and a stronger rule of law in environmental law in light of the ecosystem approach? The main focus is on Europe, with additional international comparisons where appropriate. The book concludes by providing a normative portrayal of future environmental law as protective, systemic and predictable.