Environmental Impact Category Weights
| Impact | Weight |
| Global Warming | 29 |
| Acidification | 3 |
| Eutrophication | 6 |
| Fossil Fuel Depletion | 10 |
| Indoor Air Quality | 3 |
| Habitat Alteration | 6 |
| Water Intake | 8 |
| Criteria Air Pollutants | 9 |
| Smog | 4 |
| Ecotoxicity | 7 |
| Ozone Depletion | 2 |
| Human Health | 13 |
| Sum: | 100 |
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