Don't make bold statement, exactly like I used to do a few months ago about this very subject :-) I got pointed to more recent studies by an oceanographer. Her

Don't make bold statement, exactly like I used to do a few months ago about this very subject :-) I got pointed to more recent studies by an oceanographer. Here is a Nature (2018) paper stating that the amount of fishing nets were underestimated in previous studies https://www.nature.com/articles/s41598-018-22939-w https://www.nature.com/articles/s41598-018-22939-w > Our model, calibrated with data from multi-vessel and aircraft surveys, predicted at least 79 (45–129) thousand tonnes of ocean plastic are floating inside an area of 1.6 million km2; a figure four to sixteen times higher than previously reported. We explain this difference through the use of more robust methods to quantify larger debris. Over three-quarters of the GPGP mass was carried by debris larger than 5 cm and at least 46% was comprised of fishing nets. Microplastics accounted for 8% of the total mass