This book sounds the alarm about the daily devastation being done to our oceans with ocean biodiversity being destroyed on par with the fastest rates of rainforest destruction. Seven tenths of Earth’s surface is water and 97 percent of that is in the ocean. More than 80 percent of ocean pollution comes from land-based activities. The author explains how ocean life maintains adequate oxygen levels, prevents erosion from storms, and maintains a vital food source that factory fishing operations cannot match. Readers will learn how industrial fishing practices, the effects of climate change, melting ice poles, and sea-floor mining are taking a tremendous toll on ocean health. Additional topics cover the impact that cruise ships, below-surface noise, pollution from plastics, human waste, and pharmaceuticals have on the ocean’s inhabitants.