A new study says that 44.7 million metric tons of electronic waste were discarded last year, and 6.3 metric tons came from the United States. According to the Associated Press, "e-waste" includes such electronic goods as TVs, refrigerators and cell phones. Only one-fifth of the discarded goods were recycled to salvage the valuable raw materials inside. The sliver, gold, copper and other valuable materials in the non-recycled goods would have reportedly been worth $55 billion. The study was backed by the United Nations and published Wednesday.