The relationship between environmentally sustainable development and company and business law has emerged in recent years as a matter of major concern for many scholars, policy-makers, businesses and nongovernmental organisations. This book offers a conceptual analysis of the principles of sustainable development and environmental integration in the EU legal system. It particularly focuses on Article 11 of the Treaty on the Functioning of the European Union (TFEU), which states that EU activities must integrate environmental protection requirements and emphasise the promotion of sustainable development.