© M. Künsting/HZB

Plastic waste is one of the greatest problems of our time. While in the 1950s about 1.5 million tons of plastic were produced per year, today it is almost 300 million tons. According to a WWF estimate, up to 12.7 million tons of these end up in the sea every year. Only a small part of it floats on the surface, the rest is pulled into deeper waters or onto the seabed. Around 80 million tons are said to have accumulated there by now.

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