If the water doesn't get as far north before it gets stopped then it heads south sooner and time is taken away from the loop that exists today. If heat loss is the same (or less) then when it gets to the tropics it is a tad warmer and the same heat that is available today would still be available when the polar regions are experiencing colder winters. To get glaciers that are 2 miles tall at NY,NY it has to come as snow and that depth would means it goes inland as well. We don't know how the Chinook winds affected snow/rain but at least one large body of water was created that went south across the border at a high rate of speed. If that happened out west it could have been going on in the east as well and the landscape that is the mountains in Georgia could be rain created rather than floods.
With the hot water at the equator heading north but on a shorter loop would it also travel faster than it does today as well as being hotter. No matter what speed it goes if it is above 82F there are going to be hurricanes created.
The wind patterns would also be different where local winds might travel in a circle as far as snow/rain and the cold wind push the snow to the north where it gets it's depth rather than from snowfall. If the ice-age went full bore the ice would grow so much that the ocean levels would drop 400 ft. That number could be used to determine how much the salinity would rise on average and salt makes it denser and that allows the same volume to carry away heat faster and lose it to the air faster and to cold water faster. Have the water from the GOM lose all it's heat by the time it hit the Grand Banks (ice shelf) and it sinks and heads south along the divide and it would pick up that heat long the way. There would be another one one the other side of the Atlantic Ridge, Spain would be about as far north as it's water got so that current could be many times faster than the Gulf Stream is at present, the South Atlantic could have been one big loop so the ice from that pole would have met a lot of warm water and that means lots of snow going higher rather than wider.
Gee, I thought this thread dealt with cooling not BS.
Walter when the earth loses so much heat via radiation into space when ice covers 1/8 of the surface like it does today and conditions come along where snow covers 1/3 of the globe does that R-Value of ice eventually act like a blanket? That keeps the radiation to space level low enough that the heating of the mantle tales place so that conditions of a pressure cooker begin to develop and that 'stored heat' escaping violently is what ends an ice-age until the conditions repeat themselves and the cooling conditions take over.
