Umm..
as a geologist I am quite familiar with the fact that the rocks don't lie.
As far as the reversals; currently they happen 4-5 times every million years, yes we are due. But that doesn't mean we'll have one and it certainly does not mean it causes an ice-age! In climate change +/- a million years is everything. I could tell you that an Asteroid hit the Yucatan and +/- a few million years later the dinosaurs went extinct.
Do me a favor. quote your sources and let me get on your page and we'll talk.
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