I need a report on what would happen if Earth's magnetic field switched?

http://www.pulseplanet.com/archive/Sep04/3281.html

Here you go ....

http://answers.google.com/answers/threadview?id=70055

We are quite sure the Earth's nagnetic field has reversed several
times. Results of the switch are mostly guesswork, but professionals
do not expect a disaster. Modern human navigation uses Earth's
magnetic field as a backup rather than primary. It is thought some
migrating birds will get lost. Much of the Earth will have ionizing
radiation at about the present level of the Arctic and Antarctic, so
the number of cancer deaths will likely increase a few percent for a
few years during the switch which might take a century.
 The pole of Earth's rotation changes smoothy over about 23,000 years,
and some lomger periods, so we do not expect significant changes or
effects during a human lifetime.   Neil

This time it might be different: it could happen overnight!

Then North becomes South, throwing compasses into disarray.

Also, computer magnetics are reversed.

This means that Bank Deposits will become Overdrafts; and vice-versa.

And Bush will be vindicated because America will become the wealthiest
nation yet again.

Hi milkomoro: I have heard some of those results, but my guess is
computer magnetics won't be effected even slightly.  Increased hard
radiation may damage some of the satellites and/or degrade
performance.  Neil

Although the jury is still out, there are reasons to anticipate
(including chaos theory) that reversals could take place over a matter
of a few hundred years or less. Not only that, but rapid fluctuations
on a much smaller time scale could occur, including periods of
complete absence. This would have an exceedingly deleterious effect
upon human welfare, and not do other life forms much good either. We
rely upon the magnetic field to protect us from the sun?s less
beneficent emanations. At its very worst, a major solar flare slicing
through us would trash *all* satellites, shoot down migrating birds
and barbecue half the population. Be afraid, be very afraid.

Thankfully however, there is no indication that humour will be
affected so mikomoro-ga will still raise a smile with his comments,
though I doubt Dubya will ever be vindicated.

Best

yes it will happen overnight and the northernlights will be visible in
the southpole. We ll have to turn our beds around to get that good
deep sleep offered by alignment with the earth's magnetic field.