| Timeline | Alternate |
| Climate changes | Dramatic • severe |
| Volcanic activity | Increased • altered locations |
| Volcanic locations | Unusual • some missing |
| Historical eruptions | Devastating • impactful |
| Environmental effects | Impacts • adaptations |
| Human behavior shifts | Adaptations • resilience |
| Animal behavior shifts | Adjustments • resilience |
| Tectonic plate movement | Altered |
| Earth's core temperature | Hotter |
