| from burning a fuel | 5 | cause |
| due to the different human activities | 5 | cause |
| a little bit | 2 | temporal |
| carbon → be → produced | 44 |
| carbon → be → created | 12 |
| carbon → be → generated | 6 |
| negative | neutral | positive |
| 0.242 | 0.642 | 0.116 |
| Raw frequency | 62 |
| Normalized frequency | 0.654 |
| Modifier score | 0.840 |
| Perplexity | 110.679 |