Though we think of Earth's five oceans as separate and distinct, they are actually a linked system of circulating water that is one single ocean - the global ocean. This comprehensive overview explores the global ocean's enormous influence on the planet, as well as humans' often-detrimental influence on the ocean. But it also highlights many inspiring initiatives underway to restore and heal Earth's most important feature, making its message of urgency as hopeful as it is accurate. Dive into these beautiful pages to learn about our magnificent global ocean - and what they can do to help save it!