An Ocean of Plastic

A new study surveys the extent of the plastic problem in the world’s oceans, estimating more than 5 trillion pieces weighing nearly 250,000 tons.

Written byJef Akst
| 2 min read

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Researchers identified the first floating islands of plastic and other trash more than 20 years ago. Plastic has also been found in the stomachs of diverse marine life, including whales, birds, and turtles. Other animals have been found washed up dead on the beach as a result of such pollution. Now, a study published last week (December 10) in PLOS ONE estimates the global abundance and distribution of ocean plastic: based on data collected during 24 expeditions from 2007 to 2013 along with and information from visual survey transects, the researchers’ model predicted that the oceans contain “a minimum of 5.25 trillion particles weighing 268,940 tons,” they wrote.

“[T]here is too much plastic in the ocean,” Andrés Cózar of Spain’s University of Cadiz who was ...

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  • Jef (an unusual nickname for Jennifer) got her master’s degree from Indiana University in April 2009 studying the mating behavior of seahorses. After four years of diving off the Gulf Coast of Tampa and performing behavioral experiments at the Tennessee Aquarium in Chattanooga, she left research to pursue a career in science writing. As The Scientist's managing editor, Jef edited features and oversaw the production of the TS Digest and quarterly print magazine. In 2022, her feature on uterus transplantation earned first place in the trade category of the Awards for Excellence in Health Care Journalism. She is a member of the National Association of Science Writers.

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