Part I: Foundations -- 1. Sustainable Development and Regulation (Klaus Mathis) -- 2. Temporal Spillovers (Bruce R. Huber) -- 3. Environmental Law and Economics in Europe (Sebastian Heselhaus) -- 4. Defending Environmental Economic Instruments against the Economists and their Opponents (Felix Ekardt and Jutta Wieding) -- 5. Escaping the Epistemic Trap (Malte-Christian Gruber).-6. Pope Francisâ€â€¦