10.2% of users threw away their old handsets, or had them stolen or lost in Q4 2007. The US Environmental Protection Agency (EPA) estimates Americans discard 125 mln phones each year, creating 65,000 tons of waste. 8% of US consumers who bought new phones in the fourth quarter are keeping and using their old handsets. Another 3.1% sold their old phones and 2.7% didn’t know, according to iSuppli.