Title: One world, one earth
Subjects: Environmental education, International education, Peace, Responsibility, Social aspects of Responsibility, Social justice, Study and teaching, Child welfare, Philosophy of education, Study And Teaching Of Specific Subjects, Sociology, Education, General, Environnement, Étude et enseignement, Erziehung, Soziale Verantwortung, Paix, Responsabilité, Aspect social, Justice sociale, Éducation internationale, Social sciences, study and teaching (elementary)