New paper: Modulation of Ice Ages via Precession and Dust-Albedo Feedbacks

Watts Up With That?

A brief summary of the new paper published in Science Direct

It is an interesting story that demonstrates that CO2 is only a bit-player in the drama of world climate, while the main characters are ice, dust and albedo.
Modulation of ice ages via precession and dust-albedo feedbacks.
The paper is open access, so all readers can view it.

Summary by Ralph Ellis

Why do ice ages occur? Surprisingly, even after many decades of paleoclimatic research we simply do not know for sure. Most scientists will agree that ice age cycles have something to do with precession: the slow wobble of the axis of the Earth. The ancient Egyptians and Greeks knew of precession and called it the Great Year, because it gives warm and cool seasons over its approximate 23,000-year cycle. But there is a problem with invoking the Great Year as the regulator of ice ages, because…

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