This book examines how the EU can be a more proactive actor in the promotion of the principles of sustainability and fairness from a legal environmental perspective. The book is one of the results of the research activity of the Jean Monnet Chair in EU Environmental Law (2017-2020) funded by the European Commission under the Erasmus+ programme. The European Union and Global Environmental Protection: Transforming Influence into Actionbegins with an introduction of the key EU competences, instruments and mechanisms, as well as the current international challenges at the EU level. It then explores case study examples from four regulated fields: climate change, biodiversity, multilateral trade, unregulated fishing, and access to justice; and four unregulated areas: mainstreaming of the Sustainable Development Goals in EU policies,and environmental justice, highlighting the extent to which the EU might align with international environmental regimes or extend its normative power. This volume will be of great relevance to students, scholars, and EU policy makers with an interest in international environmental law and policy.