Reported is an evaluation of Project ICE conducted in the state of Wisconsin in 1974-75. Project ICE is a five year environmental education project located in Green Bay, Wisconsin and funded by the State of Wisconsin under ESEA Title III. Begun in 1970, the project has developed a series of Supplementary Curriculum Guides for all subjects and all grades, K-12 based on twelve environmental concepts. Each lesson identifies a major concept, provides behavioral objectives, suggests instructional or student activities and lists available resource materials. The program emphasizes flexibility by providing numerous alternatives for each lesson. The sample consisted of students in grades 2, 5, 8, and 11 in 14 schools. Evaluation included cognitive assessment of student achievement, teacher logs, teacher reactions, and parent reactions. Students were pretested in the fall and posttested in the spring. Data favored experimental schools in grades 2, 5, and 8. Data for grade 11 were not significant; this supported observations that the ICE program was not implemented in grade 11 experimental schools. Teachers were generally favorable to the program and many parents indicated they felt increased awareness of the environment in their children's questions, behavior, etc. (RH)