Score energy, water, waste and emission data into a single environmental impact index for comparing options.
分数越高表示环境影响越大,仅供对比。
| Item | Formula / Note | Source / Standard |
|---|---|---|
| LCA framework | LCA 4 phases | ISO 14040/44 |
| Impact categories | 5 impact categories | ReCiPe 2016 |
| Weighting score | S = Σ wi·si | ISO 14044 |
能耗、碳排放与环保相关的估算。