How Plastic Pollution Is Choking The Worlds Oceans. Danielle Smith-lleras Former Life As A Teacher Led Her To Write Books For Young People. She Has Taught Literature, Writing, History, And Visual Arts To Students Ranging From Elementary School To College. Millions Of Tons Of Plastic Slip Into Oceans Every Year. Some Floats And Travels Slowly With The Currents, Endangering The Health Of Marine Animals. The Rest Is Hardly Visible But Is Far More Dangerous. Tiny Bits Of Plastic Sprinkle The Oceans Surface Or Mix Into The Sandy Seafloor And Beaches. It Ends Up Inside Birds, Fish, And Other Animals, Harming Them-and Ultimately