Chapter 2 introduces the sources of international environmental law in this context, reviews the development of this new branch of international law, and explains how it has evolved to take into account the situation of developing countries. In addition, Chapter 2 analyses the principle of equity or fairness in international law in relation to the use of differential treatment for developing countries in international environmental agreements. Chapter 3 discusses the concept of sustainable development and its legal implications. Chapter 4 analyses the main sources of conflict with regard to the treatment of developing countries in the international regulatory process and examines the use of uniform versus differential norms. Chapter 5 examines the incentives specifically addressed to developing countries and disincentives, as they appear in the provisions of some of the international environmental agreements and assesses the merits of the different types of differential norms. Chapter 6 addresses how international institutional structures can facilitate the participation of developing countries in international environmental agreements. Chapter 7 analyses various special funding mechanisms that have emerged, which have created more incentives for developing countries to participate in international environmental agreements. Chapter 8 examines the role of non- governmental organizations in promoting universal participation. In conclusion, Chapter 9, summarizes the goals, strategies, and effective mechanisms that enable developing countries to begin to effectively participate and move toward more equal participation in the regulatory process to address global environmental problems.