Today, the ocean holds roughly 1 tonne of plastic for every 5 tonnes of fish. On the current trajectory, that ratio reaches 1:1 by 2050.
Plastic
~150 Mt
Fish
~812 Mt
Estimated ocean stocks today (2014 baseline, in million tonnes): about 150 million tonnes of plastic against about 812 million tonnes of fish. Source: Ellen MacArthur Foundation and World Economic Forum, 2016.
8 Mt
of plastic leak into the ocean every year, about one garbage truck per minute
The ocean already holds about 150 million tonnes of plastic.
Roughly 8 million tonnes are added each year, and that flow is accelerating.
Total marine fish biomass is estimated at about 812 million tonnes and is broadly stable or declining.
Stack rising plastic against flat or falling fish, and the two lines cross around 2050.
Questions people ask
Direct, citable answers to the most common questions about the 2050 plastic vs. fish projection.
Will there really be more plastic than fish in the ocean by 2050?
According to a 2016 report by the World Economic Forum and the Ellen MacArthur Foundation, the ocean is expected to contain more plastic than fish by weight by 2050 if current trends continue. The report estimates the ocean already held about 150 million tonnes of plastic in 2014, roughly 1 tonne of plastic for every 5 tonnes of fish, and projects the ratio reaches 1:1 by 2050.
How much plastic enters the ocean every year?
Researchers estimate that at least 8 million metric tonnes of plastic leak into the ocean each year, roughly the equivalent of dumping a garbage truck of plastic into the sea every minute. Without intervention, that rate is projected to double to two trucks per minute by 2030, and four per minute by 2050.
Where does the 2050 projection come from?
The 2050 projection originates from The New Plastics Economy: Rethinking the Future of Plastics, jointly published in January 2016 by the Ellen MacArthur Foundation, the World Economic Forum, and McKinsey & Company. It models global plastic production, leakage rates, and ocean fish biomass under business-as-usual conditions.
How much fish biomass is in the ocean today?
Estimates of total marine fish biomass vary, but commonly cited figures place it between 800 million and 2 billion tonnes. The Ellen MacArthur Foundation report uses a working figure of approximately 812 million tonnes when comparing it to ocean plastic stocks.
Can the 2050 plastic vs. fish projection still be avoided?
Yes. The projection is conditional on business-as-usual growth in plastic production and waste mismanagement. Reducing single-use plastics, improving collection infrastructure in coastal communities, and creating economic value for waste plastic (the core of Plastic Bank's model) can change the curve well before 2050.
What is Plastic Bank doing about ocean plastic?
Plastic Bank operates collection branches in coastal communities across countries like Indonesia, the Philippines, Brazil, and Egypt. Members exchange collected plastic for income, groceries, school tuition, health insurance, and digital payments. The collected material is processed into Social Plastic® feedstock and reintegrated into global supply chains, preventing it from entering the ocean.
We can stop the clock
Plastic Bank turns ocean-bound plastic into income for the world's most vulnerable coastal communities, and into Social Plastic® for the world's biggest brands. Every kilo collected is a kilo that never reaches the sea.
Collect
Local collection branches in vulnerable coastal regions.
Exchange
Members trade plastic for income, food, tuition, and healthcare.
Reuse
Processed Social Plastic® re-enters global supply chains.
World Economic Forum, Ellen MacArthur Foundation and McKinsey & Company (2016). "The New Plastics Economy: Rethinking the Future of Plastics." ellenmacarthurfoundation.org
World Economic Forum (January 19, 2016). "More plastic than fish in the ocean by 2050: report offers blueprint for change." weforum.org
Jambeck, J. R. et al. (2015). "Plastic waste inputs from land into the ocean." Science, 347(6223). DOI: 10.1126/science.1260352
How to cite this page
Plastic Bank. "Plastic vs. fish by 2050: a live countdown." Rivers carrying plastic to the ocean. https://rivers.plasticbank.com/plastic-vs-fish-2050. Reviewed September 4, 2026.
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