The primary and most significant component of all activities in modern global civilization is environmental protection. Its endangerment as a result of rapid economic and technical advancement is increasingly becoming an ecological crisis and a danger to the continued existence of life on Earth. Synergy at all levels and figuring out how to implement and attain a high level of environmental quality, is the actual challenge facing contemporary society. A planned, integrated, and holistic systemic approach through the determinants of sustainable management is required because the environment is a complex system and, on the other hand, its protection involves a complex field of action with many interconnected aspects, elements, measures, and activities. The aim of the paper is to conduct an analysis of the relevant studies in order to raise better understanding on the complexity and significant determinants of the environment, its systemic functioning, and the importance and necessity of its protection within a planned, integrated, and holistic approach and environmental management based on the principles of sustainable development. In this approach, the authors contribute in a modest way to the important topic of long-term environmental protection and preservation, particularly in light of leaving a legacy for future generations.