This handbook is intended to enable national judges in all types of tribunals in both civil law and common law jurisdictions to identify environmental issues coming before them and to be aware of the range of options available to them in interpreting and applying the law. It seeks to provide judges with a practical guide to basic environmental issues that are likely to arise in litigation. It includes information on international and comparative environmental law and references to relevant cases. Judges in each particular country will supplement this overview with more detailed information drawn from national experiences, laws and traditions.