| The earth has gradually been warming since the little ice age, again with a few peaks and dips in temperature. |
| The lowering of montane vegetation belts in New Guinea during the last ice age was broadly synchronous with that of South America and Africa. |
| Previous data have shown that, in the ice age, glacial ice built to quite high elevations in the mountains just inland from the Ross Ice Shelf. |
| Two centuries ago, much of the Northern Hemisphere was emerging from a little ice age. |
| It is believed that a minor perturbation in solar heating caused by orbital changes could lead to another ice age or warming period. |
| During the little ice age, solar activity was known to be lower than it is now. |
