cyclical lows in solar radiation, heightened volcanic activity, changes in the ocean circulation, an inherent variability in global climate, or decreases in the human population.
The Bering strait is how they came but i don't know what you mean by ice age
it got hotter
Yes. Ice Age: Dawn of the Dinosaurs (2009) grossed almost $200 million in the US and almost $700 million(!) in the rest of the world.
Not all of North America. The last Ice Age's ice sheets spread all the way down to what is now the US/Canadian border, and that's about as far south as the ice went.
It has not yet returned, and the global warming fans will save us from it.
Glacial melt water from the last ice age.
It Gave us more land and pinche water
The Atomic Age & Atomic Energy.
For the US: July 2012 For Austr: June 28, 2012
No. Has nothing to do with voting.
It has not yet returned, and the global warming fans will save us from it.
Industrial might and the atomic age.