The Earth's Shifting Crust by Charles Hapgood - wire of information

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EARTH'S SHIFTING CRUST
theories supposing a general fall of world temperatures during
the ice ages. We have seen that ice ages existed in the tropics
and that great icecaps covered vast areas on and near the
equator. This happened not once, but several times. The
question is, if the temperature of the whole earth fell enough
to permit ice sheets a mile thick to develop on the equator,
just where did the fauna and flora go for refuge? How did
they survive? How did the reef corals, which require a minimum
sea-water temperature of 68 F. throughout the year,
manage to survive? We know that the reef corals, for ex-
ample, existed long before the period of the tropical ice
sheets. Furthermore, we know that the great forests of the
Carboniferous Period, which gave us most of our coal, lived
both earlier than and contemporarily with the glaciations of
Africa and India, though in different places. Obviously, this
would have been impossible if the temperature of the whole
earth had been simultaneously reduced, for the equatorial
zone itself would have been uninhabitable while all other
areas were still colder. It is small wonder that W. B. Wright
insisted, over a quarter of a century ago, that the Permo-
Carboniferous ice sheets in Africa and India were proof of a
shift of the poles (461).
4. The New Evidence of Radiocarbon Dating
The problem of the causes of ice ages has been still further
complicated by a recent revolution in our methods of dating
geological events. In the course of the last ten years all of
our ideas regarding the dating of the recent ice ages, their
durations, and the speed of growth and disappearance of the
great ice sheets have been transformed. This is altogether the
most important new development in the sciences of the earth.
The repercussions in many directions are most remarkable.
In order to get an idea of the extent of the change, let us
see what the situation was only ten years ago. As everybody is
aware, geologists are used to thinking in terms of millions of