Due to this problem, many people do not fully understand the concept of sustainability. According to Alshuwaikat and Abubakar (2007), “a sustainable university campus must be a healthy campus environment, with a thriving economy through energy and resource conservation, waste reduction and effective environmental management, and promote equity and social justice in its business and exports. these values ​​at community, national and global levels” (p. 1778). Thomas (2004) also carried out several researches and discovered that sustainability has several meanings, mainly the need to accept the probability of survival of our species, an attitude of care or stewardship and the practical skill required to act on the basis of knowledge and feeling. Thomas also discovers that sustainability is too abstract and lacks scientific basis. Like many concepts, sustainability is unclear and lacks clear learning outcomes (Stewart, 2010). Sustainability itself has become a fragmented field of thought; definitions abound. Some equate sustainability with sustainable development, while others equate sustainability with narrowly interpreted notions of the environment. I believe that the education system around the world should come up with a general or universal definition of the word sustainability and the concept of sustainability in higher education so that university staff and students have a clear and precise understanding of this word.