An Egyptian startup, TileGreen, is aiming to turn more than 5 billion plastic bags into tiles tougher than cement as it tackles the twin problems of tons of waste entering the Mediterranean Sea and high levels of building sector emissions. Nearly 74,000 tons of plastic waste from Egypt enter the sea each year, which the project aims to reduce. Plastic waste is melted and compressed at a factory on the outskirts of Cairo. They hope to expand to other countries.

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