Environment is the pivotal point on which the universe exists. Hence, any change in this can lead towards the total destruction of earth in particular and universe in general. The present generation is facing those disasters that the past generations have done to earth. If this prevailing situation persists, the world will face a severe disaster in the near future. It is high time that we take some stern action towards protecting our mother earth. The United Nations Decade of Education for Sustainable Development (UNDESD) emphasized that Environmental education to be introduced not only as a part of school curriculum, but also in the teacher education curriculum in order to develop necessary awareness and desirable attitude towards environment and its conservation. The present study is to find out the environmental awareness of teachers of higher education who were undergoing the Orientation Programme (OP-123) at HRDC (Human Resource Development Centre), Himachal Pradesh University, Shimla and also from students of Himachal Pradesh University, Shimla. For this, a questionnaire was prepared consisting of items pertaining to issues like atmosphere and climate change, biodiversity and forests, water, fresh water, oceans and seas, health and sanitation. It was found that teachers had high environmental awareness, whereas in the students’ category, only 64.28% of students showed a high awareness pertaining to environmental issues. The paper also includes suggestion for protecting the environment.