The ocean is becoming the world's largest garbage dump. All kinds of garbage from all over the world, from small debris to large garbage, gather here.

In 2014, a search team was formed in more than a dozen countries to search for the missing MH370 airliner. People heard about suspected debris floating on the Indian Ocean, but ultimately these debris were just a variety of marine garbage.

In the Indian Ocean, far from the coastline, rescuers found the largest drift more than 20 meters in length, with huge plastic waste and fishing equipment.UNEP previously estimated that more than 6.4 million tons of garbage enter the ocean every year. The largest source of marine litter is land-based activities.

These include: waste released from coastal or riparian garbage dumps; coastal tourism and leisure use; fishing activities; beach garbage; shipbreakers.The main sea-based sources of garbage include lost or discarded fishing gear; shipping activities; legal and illegal dumping.

In 2015, scientists at the University of Georgia published a study in the Journal Science that further accurately presented the problem of marine plastic waste. The report shows how 192 coastal countries and regions around the world discharged plastic waste into the oceans.

About 8 million tons of plastic waste flow into the ocean every year around the world. In 2010, a total of 275 million tons of plastic waste were produced in 192 coastal countries and regions. In the end, 4.8 million tons to 12.7 million tons of plastic waste entered the ocean, becoming the fatal killer of the marine ecological environment.

This is equivalent to five plastic bags stacked on each foot (30 cm) of coastline in 192 coastal countries and regions studied.By stacking 8 million tons of plastic waste together, 34 areas of Manhattan, New York, can be buried in ankle-deep plastic waste.

Now, due to human activities, there are five huge garbage belts on the earth. Plastics, bottles, ropes and fishing net whirlpools create garbage belts when man-made garbage gets stuck in the circulating ocean circulation, the largest of which is the Pacific garbage belt.

It was previously estimated that the Pacific garbage belt is as large as that in Europe, but according to recently published research results, the Pacific garbage belt is 16 times larger than previously estimated.The Pacific garbage belt between Hawaii and California consists of two distinct collections of debris connected by the North Pacific subtropical circulation.

Researchers at the Marine Cleaning Foundation calculated that at least 79,000 tons of plastic were floating in the area.Three quarters of the total mass of the station is more than 5 cm, and 46% of the garbage is fishing nets. Researchers wrote a new analysis of the area, showing that marine plastics in the area increased exponentially faster than in the surrounding waters.

Scientists have previously captured decomposed microplastics through plankton nets floating behind ships to estimate the amount of rubbish in the Pacific garbage belt.

In the new study, scientists combined aircraft surveys with ship-net systems, using 18 boats and 652 fishing nets for capturing micro-plastics and larger debris. In this way, they determined that the garbage belt contained 1.8 trillion pieces of plastic.

Although plastic particles account for 94% of total plastic, they account for only 8% of the weight of 70,000 tons of plastic waste. Most of the garbage belts are larger garbage, such as ropes and floating plastics over five centimeters.In addition, they found that the earliest plastics date back to 1977. Researchers also estimate that the 2011 earthquake and tsunami in Japan may have caused 20% of the plastic to be washed into the area.

The analysis results show that about 99.9% of marine waste is plastic, which comes from 320 million tons of plastic waste consumed annually around the world.Sixty percent of plastic products are less dense than seawater, which means they are actually captured by ocean currents and wind, which breaks them down into smaller pieces and fills the ocean.By understanding the distribution of plastics, researchers hope to design better solutions to collect them all before things get worse.

Previously, scientists had discovered huge floating landfills in the Atlantic Ocean, which were only slightly smaller than the overall size of the Great Pacific Garbage Patch.