This monograph provides an in-depth analysis of Article 7 of the Rome II Regulation, and its interplay with other EU PIL provisions, from a litigation perspective. Simultaneously, due to its critical approach, it provides a blueprint for the European legislator to implement future legislative amendments in the said rules, in order to suppress their limitations. Overall, the book reaches conclusions on: *whether it is effective at all, from the standpoint of environmental protection, to intervene in environmental matters though PIL means; *whether PIL interventions in environmental matters enhance and spread the EU's environmental law policy, both inside and outside the EU *whether the EU is adequately using the PIL tools at its disposal to intervene in (environmental) global governance.