type 1,2,3 civilization.Look at article about wind cultures . also, read the Kardavesh scale article..to access the files move the mouse arrow. ove rthe spot indicated to the right side here below
The variables may be many but the horizontal example as verging on the left or right might decide which way the ice age goes by tilting the Earth in any of the directions.
Green land is a very large area of snow similar to the north and south poles.