Oxygen Cycle explores the vital processes that govern the presence and cycling of oxygen on Earth, emphasizing its critical role in sustaining life. This book uniquely examines the interconnectedness of the atmospheric oxygen cycle, biogenic oxygen production (primarily through photosynthesis), and oxygen's role in biological processes like respiration. Disruptions to this cycle can lead to significant consequences, affecting air quality and climate regulation, highlighting the importance of understanding this delicate balance.

The book progresses from introducing oxygen's fundamental properties to detailing the processes driving its production, especially photosynthesis in plants. It then examines oxygen consumption through respiration and other processes. A significant portion is dedicated to factors influencing the cycle, such as deforestation and climate change.

By adopting a systems-thinking approach and using data from atmospheric monitoring and ecological studies, Oxygen Cycle provides a comprehensive overview, making it valuable for students, environmental professionals, and anyone interested in environmental sustainability.