"gregjohn" <pte### [at] yahoocom> wrote in message
news:web.4be21f35753d55fe34d207310@news.povray.org...

> I suppose that in some future epochs, there could be volcano eruptions
that
> could do something like ground air travel over Europe not just for a month
but a
> year or a century.
>
> Can humans do anything?

Sure. We can stop worring over highly improbable doomsday sceanarios, for
starters.

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