The world’s oceans are polluted by a “plastic smog” made up of an estimated 171 trillion plastic particles that if gathered would weigh around 2.3 million tons, according to a new study.
A team of international scientists analyzed global data collected between 1979 and 2019 from nearly 12,000 sampling points in the Atlantic, Pacific and Indian oceans and the Mediterranean Sea. They found a “rapid and unprecedented” increase in ocean plastic pollution since 2005, according to the study published Wednesday in the journal PLOS ONE.
The researchers spent years poring over peer-reviewed papers as well as unpublished findings from other scientists to try to collate the most extensive record they could – both in terms of timeframe and geography. Most of the study’s samples were collected in the North Pacific and North Atlantic, where the majority of data exists. The study authors say more data is still needed for areas including the Mediterranean Sea, Indian Ocean and the South Atlantic and South Pacific.
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