（Purely personal perceptions, not necessarily correct ！）
Humans have produced at least 8.3 billion tons of plastics as of 2017, 6.3 billion tons of which are completely waste products. However, only 9 % of this waste was recycled; another 12 % was incinerated while the remaining 79 % was buried in the soil or dumped into the sea.
In 1997, people paid attention to the “eighth continent”. According to rough estimate of scientists, the “eighth continent” is made up of 4 million tons of plastic waste, covering an area of 1.4 million square kilometers, which is about four times the size of Japan. What is more, the area is growing every year. The plastic waste is damaging the ecosystem of the ocean. What is even worse is that plastic waste can also be degraded to microplastics, with small pieces of plastic ranging in size from a few microns to a few millimeters. These microplastics also make their way up the food chains and into human bodies. In March 2022, scientists detected microplastic contamination in human blood for the first time and the tiny particles were found in nearly 80% of test subjects’ samples.
In 2019, Plastic debris has been found in the Mariana Trench, the deepest place in the world. Some deep sea plastic garbage has become a breeding ground for some marine animals.
In July 2022, the Japanese government publicly and formally approved the Fukushima million-ton nuclear sewage “sea discharge plan”.
The ocean is the cradle of life, protecting the ocean is protecting the earth, and protecting the earth is protecting ourselves.