In recent decades, population growth, urbanization, economic and industrial development, and increased consumption of natural resources have caused many environmental problems in the world such as: reducing biodiversity, deforestation and desertification, soil erosion, increasing amounts of waste and pollution, climate changes and greenhouse effect. In order to conserve natural resources and the existing natural environment, the strategy of protecting and sustainable development is a fundamental issue for improving and maintaining human life. The use of various sciences and technologies to assess and manage the renewable and non-renewable resources can help to reduce or solve environmental problems. Environmental considerations and attentions to sustainable development on a local, regional and global scale are principals to improve the quality of living in our human settlements.  The development of environmental knowledge using effective training programs is an easy way to achieve a better and more sustainable future for all. For this, the environmental science and engineering try to manage and implement necessary solutions to address environmental problems.