The Weekly World News does seem to appear - shall we say - a little bit 'lunatic fringe'.
If it truly had been predicted than an acidic dust-cloud was on the way to Earth, I'm sure the Rich and Powerful would be looking for a way to got out of the way, or else they would be going totally berserk and trying to destroy the planet before they were killed off.
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"The power of accurate observation is called cynicism by those who have not got it." - George Bernard Shaw (Taken from someone on comp.programming)