Plastic waste is pictured at the bottom of the sea, off the island of Andros, Greece, July 20, 2019. Picture taken July 20, 2019. Thousands of plastic bags were pulled from the sea off Greece's Andros island this month by a team of divers and environmentalists who described what they found as a "gulf full of plastic corals." REUTERS/Stelios Misinas

Volunteer divers of the environmental group Aegean Rebreath gather waste from the bottom of the sea, off the island of Andros, Greece, July 20, 2019. Picture taken July 20, 2019. Like colourful corals, they swayed in the underwater current. Only these were not gorgeous natural reefs built up over centuries but plastic bags, stuck to the golden Aegean seabed since a landfill crumbled into the water eight years ago. REUTERS/Stelios Misinas

A volunteer diver of the environmental group Aegean Rebreath gathers plastic waste from the bottom of the sea, off the island of Andros, Greece, July 20, 2019. Picture taken July 20, 2019. Seas polluted with plastic have become one of the most shocking symbols worldwide of mankind's damage to the planet. REUTERS/Stelios Misinas

A faucet is seen at the bottom of the sea, off the island of Andros, Greece, July 20, 2019. Picture taken July 20, 2019. Thousands of plastic bags were pulled from the sea off Greece's Andros island this month by a team of divers and environmentalists who described what they found as a "gulf full of plastic corals." REUTERS/Stelios Misinas

Plastic and other waste are pictured at the bottom of the sea, off the island of Andros, Greece, July 20, 2019. Picture taken July 20, 2019. Like colourful corals, they swayed in the underwater current. Only these were not gorgeous natural reefs built up over centuries but plastic bags, stuck to the golden Aegean seabed since a landfill crumbled into the water eight years ago. REUTERS/Stelios Misinas

A volunteer diver of the environmental group Aegean Rebreath uses a balloon to lift ghost nets from the bottom of the sea, off the island of Salamina, Greece, June 30, 2019. The sea pollution off Andros is thought to date back to 2011, when heavy rain caused an informal waste disposal site to collapse, with most of the materials tumbling into the sea. REUTERS/Stelios Misinas