The first volume of the International Environmental Law Reports focuses on early decisions. It includes all the well known, and some lesser known, international decisions relevant to international environmental law prior to the 1970s, with a summary of each decision. Volume 1 also includes a number of very early national decisions considered important in the development of international environmental law, either because they were the background against which international decisions were shaped or because they are often referred to but are not widely available in English. Other decisions are included in because they illustrate of national views of the content and direction of international law at the beginning of the twentieth century. This is the first ever collection devoted to international environmental law decisions, an essential work of reference collecting all relevant materials in one place.