Cigarette butts are the most littered item in the world, and the city of New Orleans has taken action to collect the incessant waste. The international recycling and upcycling company TerraCycle, Trenton, New Jersey, launched its first citywide cigarette butt recycling receptacles program in British Columbia, making New Orleans the first U.S. city to participate in a large-scale recycling effort, according to TerraCycle.