Oceanology, also known as oceanography, is the study of oceans and their physical, chemical, biological, and geological attributes. Some synonymous terms for oceanology include marine science, marine biology, coastal studies, aquatic science, and oceanic studies. These terms highlight the interdisciplinary nature of oceanology and its focus on all aspects of the ocean ecosystem. Other related terms include limnology, which studies freshwater systems, and hydrology, the study of water resources on land. As the world's oceans continue to face increasing threats from climate change and pollution, oceanology and its related fields become increasingly important in understanding and conserving our planet's vast aquatic environments.