Endangered Oceans: Investigating Oceans in Crisis

Endangered Oceans: Investigating Oceans in Crisis — page 3
Sea of Life Why Oceans are needed Why should anyone care what happens to oceans People live on dry land Many live hundreds of miles from the shore But what affects the oceans affects people too People around the world rely on the ocean as a main source for food About 3 billion people worldwide eat more than 112 billion pounds 51 billion kilograms of seafood per year That's 37 pounds 17 kg per person Additionally fisheries and aquaculture provide jobs for 540 million people worldwide The ocean is Earth's largest source of oxygen Oxygen is necessary for all life on Earth Green plants produce oxygen Phytoplankton are one kind of green plant in the ocean Billions of these one celled tiny plants produce half of all the world's oxygen Fishers unload their catch at a market in Sam Muk Chonbuti Thailand