In today’s age, man is increasingly changing the environment through his activities and modernization, which often has harmful effects and negative consequences for the environment as well as for people’s health and quality of life. This is why environmental education is of great importance for our future life and future generations, and it must start from an early age of human life. During primary and secondary school education, students learn about nature and environmental protection mainly through the subjects of nature and biology, but geography plays an equally important role in this. A detailed analysis of the subject curriculum of Geography gives the results and the amount of content taught to students about the environment, i.e. the protection of the natural environment in the teaching of geography. A survey questionnaire and an interview were conducted on the representation of the teaching and processing contents of this topic. The survey was comprised of 100 geography teachers from primary and secondary schools in the Republic of Croatia, and 4 teachers gave an interview. The results showed that the curriculum contents are more prevalent in some classes and less or almost absent in others. The respondents were divided, but more than half of them still believe that the Geography curriculum contains enough content on environmental protection. The respondents gave various activities and forms of work, which are used to process content and achieve outcomes on nature and environmental protection.