Improved Alternatives for Estimating In-Use Material Stocks

摘要: Determinations of in-use material stocks are useful for exploring past patterns and future scenarios materials use, estimating end-of-life flows materials, thereby guiding policies on recycling sustainable management materials. This is especially true when those determinations conducted individual products or product groups such as “automobiles” rather than general (and sometimes nebulous) sectors “transportation”. We propose four alternatives to the existing top–down bottom–up methods stocks, with choice depending focus study available data. illustrate aluminum use in automobiles robustness consistencies differences among these demonstrate that a suitable combination permits estimation stock contained all employing material, different particular pro...