Many social media users like the idea, thinking it will give Sofia a "more European" eco-friendly feel, although some see it as no more than an election stunt by the city's governing Gerb party. "The rails will stay green only until after the election," says one person on the Dnevnik newspaper website . Plenty of others worry that the grass will be left to dry out and turn yellow, with one reader on the Vesti website warning: "Nice dry grass needs only one cigarette butt, then we'll see the spectacle of trams passing through flames."