UNESCO and the International Bureau of Education devoted this international inquiry in comparative education to the study of environment in schools throughout 79 countries of the world. Concerning the scope of the topic, introductory comments note that "study of environment in schools is difficult to define or confine, for it constitutes more an educational principle, or even a method, than a subject concentrating on knowledge in a specific field." The publication has four parts--(1) Introduction, (2) Questionnaire Addressed to the Ministries of Education, (3) Comparative Study: Place Assigned to the Study Environment in School Activities as a Whole, Relationship with Youth Movements, Aims and Definition, Syllabuses and Subjects for Study, Methods, Teaching Techniques and Aids, Teaching Staff, and (4) Individual Studies: Responses from the 79 Countries. The responses from participating countries revealed that the study of environment is rich in opportunities, but that many countries lack the resources and local circumstances to exploit these opportunities fully. (KK)