I hope in the future people will not be worried about food security. Because human is at the highest tropic level at present, every polluted item in fish, chicken, or beef, would finally move into the human’s body. In the ocean, many fishes eat plastic bags, and finally, these plastic particles enter the human body. So even though plastic bags are very convenient and cheap stuff in modern society, and are useful in daily life, people should consider whether can we control the final destination of these plastic bags. Protecting the environment of all animals is protecting humans ourselves. There is also some wastewater emission from industry polluting the ocean security, the waste released to the ocean just because it is convenient without cost, the government should make laws to control, and everyone should aware of this.