Australian agency concludes that there are almost 15 million tonnes of microplastic on the seabed.
The numbers are worse than previously thought. According to the Commonwealth Industrial Science and Research Organization (CSIRO), there are 14.4 million metric tons of microplastics at the bottom of the seas.
The data, now revealed and published in the journal Frontiers in Marine Science, points to a number 25 times higher than estimated in previous studies.
In addition, the plastic that is sedimented is three times greater than that which is floating on the surface. To reach these conclusions, the researchers resorted to a robotic submarine that was collecting sediments about 300km off the coast of Australia, which means that the problem may be even more serious than the one now documented.
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