Every second, 100 tons of waste (out of nearly 4 billion produced annually) end up at sea, much of which is made of plastic. Some do not hesitate to speak of "seventh continent". Floating objects or microparticles, these plastic waste is deposited on the beaches, disperse at sea, are found on the seabed. The effects on humans and their environment are very dangerous so I really want a solution at the global level to keep our environment clean and save humanity.