[SuziQ]

The study, which is reported in the journal Science, offers new insights into a decades-long debate about how the shifts in Earth's orbit relative to the sun have taken Earth into and out of an ice-age climate.

I think some of this was explored in Henrik Svensmark's book, "The Chilling Stars: A Cosmic View of Climate Change".

[muawiyah]

There are some references to other articles ~ one of them was about missing ice 34 million years ago ~ seems that the topography of West Antarctica was far different in those days ~ it rode higher so more ice could pile up on it.

Today it's been pushed down further into the upper mantle ~ which raises a question about where the mantle material went. I expect an article on that in the next few years ~ maybe the West Antarctic rise or something ~

Florida is explained the same way. Ice piles up on North America and the landmass sinks pushing material in the upper mantle South into the area under Florida. That raises the sea floor upward creating Florida!

Distressing news though ~ whether you have the 100,000 year cycle that started 900,000 years ago, or the older 41,000 year cycle, we are long overdue for our NEXT glaciation.