magnetic reversals (or excursions), the climate descended
from periods of warmth such as today's into full-blown
glaciation in less than twenty years. (kya = thousands of
- That there is a link between magnetic reversals
and ice ages is undeniable.
- At least twelve magnetic reversals can be linked
to glaciation during the last three million years
- A magnetic reversal about three million years ago
marked the onset of glaciation. A magnetic
reversal about two million years ago marked the
onset of glaciation. And yet another reversal
about one million years ago marked the onset of
- The Jaramillo magnetic reversal maked the onset
of glaciation, as did the Brunhes magnetic
- The Biwa I, Biwa II, Biwa III, and Blake (at the
end Eemian) magnetic reversals coincided with
glaciation, and so did the Lake Mungo, Mono Lake,
and Gothenburg magnetic reversals (or
- Many of those catastrophic cooling episodes, says
Michael Rampino of NASA, may have actually been
triggered by the magnetic reversal (or
Why should this
- One: We appear to be headed for another magnetic
reversal right now. During the past 2000 years,
magnetic field strength has fallen some 50 to 65
percent. Unfortunately, the rate of decline is
picking up. Five percent of the decline has
occurred during the last 100 years alone. This
decline, say geophysicists, may be a precursor to
a new reversal attempt.
- Two: When ice ages begin, they begin incredibly
fast. At the end Eemian, for example, the climate
descended from a period of warmth such as today's
- such as today's - into full-blown
glacial severity in less than twenty years.
- Three: I think we're headed into such a
twenty-year period right now.
- Four: The North Magnetic Pole
is moving! "The magnetic pole, which has steadily drifted
for decades, has picked up its pace in recent years and could
exit Canadian territory as soon as 2004," said Larry
Newitt of the Geological Survey of Canada. "It's speed has increased
considerably during the past 25 years," the
geophysicist said. See:
CNN.com - North Magnetic Pole -
March 20, 2002.
- Five: According to John Tarduno, professor of geophysics at the
Univerity of Rochester (NY), the next magnetic reversal could
occur within a matter of centuries.
Tarduno based his findings on detailed studies of the Earth's
magnetic field made during four trips above the Arctic
Circle. (Published in the Proc. of the National Academy
of Sciences, 16 Oct 2002.)
As a press release from the University of Rochester puts
Tarduno's findings "suggest that humanity is in for a surprise in
the not-too-distant future. Since the Earth's magnetic field has
been decreasing in intensity for the last several thousand years,
and the intensity and likelihood of pole reversals are linked, in as
little as a few centuries we may see the Earth's magnetic poles
flip, sending everyone's compasses angling toward the South Pole."
Magnetic reversal may be in progress - BGS
17 Jan 11 - According to the British Geological Survey (BGS,
we could now be headed into a magnetic reversal, thus
validating the premise of Not by Fire but by Ice and
Magnetic reversals and Evolutionary Leaps.
Magnetic reversal may be in progress - BGS
compasses point south?
this headline doesn’t come from some supermarket tabloid, it comes from the
New York Times and it backs up what I’ve been saying for years – that we
are headed for a geomagnetic reversal.
field strength has waned 10 to 15 percent over the past 150 years, the article
says, and the deterioration has accelerated. “The fact that it (magnetic field
strength) is dropping so rapidly gives you pause,” says Dr. John A. Tarduno,
professor of geophysics at the University of Rochester. The odds of a reversal
are “more likely than not,” says Tarduno. (New York Times, July 13,
2004, by William J. Broad)
article goes on to say that the last magnetic reversal occurred some 780,000
years ago, and that there is no correlation between magnetic reversals and
I disagree with both of those contentions. I have evidence that
there have been at least eleven magnetic reversals in the past 780,000 years -
probably many more. I also have evidence that extinctions and reversals do in
fact go hand-in-hand.
And I have evidence (from Steens
Mountain in Oregon) that
magnetic reversals can take place in a mere 30 days.
Ice ages also correlate with magnetic activity on the
According to Mukul Sharma, Assistant Professor of Earth
Sciences at Dartmouth, the Sun displays a 100,000-year cycle of magnetic
activity that corresponds to the Earth's ice age history.
Sharma's calculations suggest that when the Sun is
magnetically more active, the Earth experiences a warmer climate, and
vice versa, when the Sun is magnetically less active, there is a glacial
period. Right now, the Earth is in an interglacial period (between ice
ages). This is also a time of high solar activity.
This cycle appears to match the 100,000-year ice-age
cycle first theorized by Milutin Milankovitch, which suggests that ice
ages correspond to the cyclical varations in the Earth's orbit around
the Sun. (Earth & Planetary Science Ltrs, Vol. 199, issues
3-4, June 10, 2002)
(One of the methods Sharma used to determine historic
magnetic activity on the Sun was through the study of beryllium 10,
which I thoroughly agree with. In fact, I mention beryllium 10
production several times in my book.)
Earth’s magnetic field fading
12 Dec 03. The strength of the Earth’s
has declined ten percent 10% during the past 150 years,
says Jeremy Bloxham of Harvard University. This could
be the prelude to a geomagnetic reversal. (For anyone
who has read Not by Fire but by Ice, you know I’ve
been saying for years that we’re headed for a