Plastic waste in the sea led to the formation of a massive garbage patch in the centre of the Pacific Ocean in late 20th century. Its area has continued to grow and exceed 1 million sq.km. by 2030. Plastic waste can be recycled and this has become the most popular way to fight pollution. To prevent waste getting into the sea, ecological drones with solar batteries have been deployed and now they are constantly working on cleaning coastal territories from plastic and delivering it to recycling plants.