Polar Ice Cycle Theory
Warm Water provides moisture for Lake Effect Snow, for Ocean Effect Snow. Warm Water is necessary to provide moisture for an ice age.
When Polar Waters are thawed, it promotes clouds and snow and more ice is put on land than melts every Summer. The clouds and the ice increase Albedo of Earth. When Polar Waters are Frozen, it gets less cloudy and snows less on land than the ice that melts every summer. The Arctic Ocean freezes long before glaciation stops. Atlantic and Pacific sources of moisture must contribute. As the ice and the cold spreads from the poles, water away from the poles can provide the moisture. When it gets cold enough to freeze the oceans and stop the snowfall, the ice keeps advancing, long after the snowfall stops.
So, why does glaciation reverse?
Ice Extent does not advance with new snow that falls at the edges of ice sheets or tails of Glaciers. Ice Extent advances because new snow falls on the old snow and makes it heavy enough to flow. Piles of debris are found dumped by retreating ice sheets and glaciers. The debris was dumped by old ice that fell as snow somewhere else and flowed.
There is some amount of old ice on land when the oceans thaw and start dumping new ice on top. That continues until the old ice underneath starts to flow faster than it is losing at the edges and tails. Then the albedo increases from the advanced ice. Albedo already did increase when the clouds formed to bring snow. It does not need to get cold first. It is already cold where the old ice was found. It does need to get warm first to melt sea ice the turn on the snowfall.
When the oceans freeze enough to turn off the snowfall, the ice is still heavy and still advancing and Earth is still getting colder. Ice advances and melts until it runs out of enough ice volume and weight to keep advancing more than it is losing at the edges and tails. Ice is always being lost at the edges and tails. Ice is always being lost by sublimation and, melting in summer, except in really cold places.
Consensus Climate Theory says something other than albedo caused much of the Temp decrease, and that something must be removed before Arctic can warm enough for land ice to significantly melt.
Polar Ice Cycle Theory says there is significant melt and ice being lost at the edges of ice sheets and tails of glaciers, every year. The supply of moisture that puts ice on top of the old ice determines if it gains more ice than it lost. Gaining ice volume and losing ice volume is not in lockstep phase with Gain and loss of ice extent. Temperature correlates with ice extent and it does not correlate with ice volume. This is one of the major issues that separates Polar Ice Cycle Theory with Consensus Theory.
Milkanovitch cycles can and do have influence on the rates of melting of the ice, but the ice is gaining or losing because polar waters are thawed or frozen. A Milkanovith warming may help thaw the polar oceans in time for the Mildanovitch cooling which follows, but the snowfall does not happen without open water. A warm Milkanovicth cycle promotes Clouds and snowfall by thawing oceans, which starts the ice advancing before or after the Milkanovith cold cycle starts. If the oceans warm and the ice melts, the snowfall happens, with or without Milkanovicth. At times, Polar Ice Cycles appear to Resonate with Milkanovicth Cycles and at other times Polar Ice Cycles appear to go their own way without Milkanovicth Cycles.
The ice extent retreat is going to happen after it does not snow enough.
The ice extent advance will happen after it does snow enough.
Pope's Climate Theory does now acknowledge that Milkanovith may have more influence than previously thought, but the temperature that Polar Sea Ice Melts and Freezes is still the Thermostat and the Albedo from Clouds and Ice are the Major Forcing, not just a feedback.