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A Comparison of Life Cycle Impact of Mass Timber and Concrete in Building Construction
World Journal of Civil Engineering and Architecture
| Vol 1, Issue 1
Table 1. Number of years to depletion at varied mining rates forlimestone reserve in Country X.
| Limestone mining rate (metric tons per year) | Number of years to depletion |
| 250000 | 60000 |
| 500000 | 30000 |
| 1000000 | 15000 |
| 5000000 | 3000 |
| 15000000 | 1000 |
| 150000000 | 100 |
| 1500000000 | 10 |
| 15000000000 | 1 |