Tag Archives: Ice Ages

5 Million years of cooling

Why did the earth cool ~6C during the Pleistocene resulting in the current deep ~100 Ky glacial cycles? The most probable cause¬† is plate tectonics – the opening of the Atlantic and continuing rise of the Himalayas after India collided … Continue reading

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Towards an understanding of Ice Ages

An Ice model driven by NH insolation but adjusted for dust albedo does a pretty good job at reproducing the last 8 glacial cycles. Details are described below. Prior to the Mid Pleistocene Transition (MPT) roughly one million years ago,¬† … Continue reading

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The Milankovitch Puzzle

The main focus in understanding Glacial cycles has been on the maximum summer insolation at 65N, yet prior to MPT (Mid Pleistocene Transition) all glaciations simply followed the obliquity cycle. To understand why obliquity is the underlying metronome, we need … Continue reading

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