Table 7 CO2 emissions linkages at different layers of construction in the United States and China (domestic).
| Â | United States | China | ||||
|---|---|---|---|---|---|---|
Layer | Emission | Contribution | Layer | Emission | Contribution | |
Net backward linkage CO2 emissions | 2 | 60.12 | 27.38% | 2 | 992.97 | 34.27% |
3 | 40.26 | 18.33% | 3 | 711.91 | 24.57% | |
4 | 16.88 | 7.69% | 4 | 419.7 | 14.48% | |
Total | 117.26 | 53.40% | total | 2124.59 | 73.32% | |
Net forward linkage CO2 emissions | 2 | 14.2 | 71.86% | 2 | 0.59 | 65.73% |
3 | 3.37 | 17.05% | 3 | 0.15 | 16.71% | |
4 | 1.24 | 6.28% | 4 | 0.07 | 7.80% | |
Total | 18.81 | 95.19% | total | 0.81 | 90.24% | |
