

……
Al Gore very much wants you
to subscribe to giving a fine hairdo
to a wrestling match with a wallaroo
by combing out your CO2.
Now each time Old Blue feels perverse,
he flips and his field goes into reverse
he goes all quiet, he gets quite terse.
then …it's better imagined in pictures than verse.
Before


During
And after


That perfect storm's the magnetic field
and it's less likely, that it will yield
than that gravity, will be repealed,
or Al Qada's feminine side revealed.
(Geomagnetic images from Glatzmaier, G.A., R.S. Coe, L. Hongre, and P.R. Roberts. 1999. The role of the Earth's mantle in controlling the frequency of geomagnetic reversals. Nature, 401 (28 October), 885–890. Others images from ?)
PS: For Australians bothered about the climate:


Change to
Signalman Second Class Jones (and the cook), Closeburn Signal Station, Oz.
Public Domain.