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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Biodegradable athletic footwear ： ウィキペディア英語版 Biodegradable athletic footwear Biodegradable athletic footwear is footwear that uses biodegradable materials with the ability to compost at the end-of-life phase. Such materials include natural biodegradable polymers, synthetic biodegradable polymers, and biodegradable blends. The use of biodegradable materials is a long-term solution to landfill pollution that can significantly help protect the natural environment by replacing the synthetic, non-biodegradable polymers found in athletic footwear. ==Problem of non-degradable waste== The United States athletic shoe market is a $13 billion-per-year dollar industry that sells more than 350 million pairs of athletic shoes annually. The global footwear consumption has nearly doubled every twenty years, from 2.5 billion pairs in 1950 to more than 19 billion pairs of shoes in 2005. The increase in demand for athletic shoe products have progressively decreased the useful lives of shoes as a result of the rapid market changes and new consumer trends. A shorter life cycle of athletic footwear has begun to create non-degradable waste in landfills due to synthetic and other non-biodegradable materials used in production. The considerable growth in industrial production and consumption has made the athletic footwear industry face the environmental challenge of generated end-of-life waste. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Biodegradable athletic footwear」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.