On the North Pacific between the US West Coast and Hawaii, there is a giant "island" on the map that is not marked, with an area of about 1.5-2 million square kilometers, which is equivalent to the size of 4 Japan, or 1,000 Hong Kong, China. The area is visually referred to as the “eighth continent” by scientists. It is a whirlpool of 1.8 trillion pieces and 4 million tons of plastic waste.