We handed out questionaires to some high school students in order to find out the Environmental Consciousness, Knowledge, Values, and Attitudes of young people in Korea. The difference in such things of high school students between Korea and Australia was analyzed by comparison with aech other. It is revealed that the Environmental Knowledge of high school students in Korea is valued significantly high degree in most cases from this study. It is, however, not due to their Environment-Friendly Attitudes and besides the Environmental Terms are hardly understood to most of them. The Environmental concerns of young people in Korea and their view on the importance of Environment, which are not in accordance with those of young people in Australia on most issues, must have been mainly affected by differences in society, economy, education, and cultural background between the two countries.