A reconstruction of the Anglian ice sheet in Precambrian North London (credit: BBC / The Natural History Museum, London)
They claim this solves the so-called 100,000 year problem described by Wikipedia:
‘The 100,000-year-problem refers to the lack of an obvious explanation for the periodicity of ice ages at roughly 100,000 years for the past million years, but not before, when the dominant periodicity corresponded to 41,000 years. The unexplained transition between the two periodicity regimes is known as the Mid-Pleistocene Transition, dated to some 800,000 years ago.’ [41,000 years being the approximate obliquity cycle period]
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In a new study published today in the journal Science, the team from Cardiff University has been able to pinpoint exactly how the tilting and wobbling of the Earth as it orbits around the Sun has influenced the melting of ice sheets in the Northern Hemisphere over the past 2 million…
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