If an asteroid, or a comet like Ison, they say twice.....|||||| And ??? You mean the Earth entering a zone, or the Solar System entering a zone that kinds?

They if don't burn off at the atmosphere, there are only Land and Water, where they land it down.

... ...The story was Buffalo one time their truck going it down to DC helping them on the Ice. When the Ice melt, where you think the water goes? The sewing system.

Most time, most disastrous typhoon country, they have to be 30 years ago knowing the water raining on them, at the city, where, the car does not de-flat. That is a basic common sense.

We are living in the Basin. 

Sea Level.

You mean like Silicon its a valley, same basin idea, I guess....you say its a valley, not concave down? But that saying will be above the Sea Level.

Meaning the modern terminology the reason why you have a sea level scale up, it will kill everything inside the basin, without the modern technology, for example you try to build a civilization in it.