Report Warns that Plastics Will Soon Outweigh Fish in World's Oceans

The weight of plastic waste clogging the world’s oceans threatens to exceed all fish by 2050 if the world’s seemingly insatiable appetite for the material continues at the current explosive rate, warned a new report presented on Tuesday.

In fact, according to the study by the Ellen MacArthur Foundation along with the World Economic Forum, “plastics production has surged over the past 50 years, from 15 million tonnes in 1964 to 311 million tonnes in 2014, and is expected to double again over the next 20 years.”

The study—The New Plastics Economy: Rethinking the future of plastics (pdf)—introduced at the opening day of the WEF’s annual summit in Davos, Switzerland is the first of its kind to comprehensively assess global plastic packaging flows. The report makes an economic case for what it calls the “New Plastics Economy,” described as “a new approach based on creating effective after-use pathways for plastics; drastically reducing leakage of plastics into natural systems, in particular oceans; and decoupling plastics from fossil feedstocks.”

Among the findings, which are based on interviews with over 180 experts and on analysis of over 200 reports, the study estimates that roughly 8 million tonnes of plastics leak into the ocean each year—”which is equivalent to dumping the contents of one garbage truck into the ocean every minute.” This amount is expected to double by 2030. 

“In a business-as-usual scenario, the ocean is expected to contain 1 tonne of plastic for every 3 tonnes of fish by 2025, and by 2050, more plastics than fish (by weight),” the report continues.

What’s more, the report estimates that only 14 percent of plastic packaging is collected for recycling and even less for plastics in general. After sorting, only 5 percent is ultimately retained for subsequent use, which is far below global recycling rates for paper (58 percent) and iron and steel (70–90 percent).