An additional facility is being developed near London with Knowaste estimating handling at least 36,000 tons of absorbent product waste a year. It is believed a typical baby will use 6,000 disposable diapers before becoming potty trained at 2 ½ years old, and 15 billion annually in the United States. That is 2.4 million tons of smelly waste. A trial diaper recycling program has started in San Clarita, California but the process is expensive. Terracycle is another company that recycles diapers but they also have taken the challenge of cigarette butts. Cigarette butts are one of the most littered items, and they often end up in bodies of water through storm drains hurting wildlife. Since 2012 in over 12,000 locations worldwide, Terracycle has collected over 90 million cigarette butts. The cigarette butts are used to make park benches and shipping pallets.