] The collapse of the earth's magnetic field, which both
] guards the planet and guides many of its creatures,
] appears to have started in earnest about 150 years ago.
] The field's strength has waned 10 percent to 15 percent
] so far and this deterioration has accelerated of late,
] increasing debate over whether it portends a reversal of
] the lines of magnetic force that normally envelop the
] earth.

The Earth is unstable.