Defying
predictions, the sun continues to ignore its established 11-year
solar cycle. It has remained extremely active long past what
should have been the beginning of the solar minimum, and now
another group of enormous sunspots has appeared on the far side
and is rotating in our direction.
Eight coronal mass ejections (CMEs) have exploded away from the
sun since July 22nd. This high level of activity is not producing
auroras on Earth, however, because none of the CMEs is heading our
way. All of the blasts have been on the farside of the sun.
That's about to change, though, according to solar observers,
because the active area is rotating in earth's direction.
Last year, the sun may have signalled a period of unrest when the
solar magentic pole shift, which takes place every 11 years,
failed to complete. The sun's magnetic field is now in a
more-or-less horizontal position, because the shift between north
and south poles did not complete.
Whether or not this has anything to do with high levels of solar
activity is unknown.
Normally, not even the most violent solar explosions have a
significant effect on earth, beyound disrupting radio and
satellite communications and, in extremely rare cases, affecting
power grids that are improperly shielded against solar energy.
However, sufficiently strong coronal mass ejections also bring
heat with them, and this can cause ground temperatures to soar
over the short term, especially in dry areas. Given the large
number of dry forests on earth at this time, should such a CME
head toward the planet, further heating and drying can be
expected, and, in some cases, there is the possibility of
spontaneous combustion, especially of plants rich in volatile
oils. (SOHO image)
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