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Re: Impact senerios

Uduido@aol.com wrote:
> In a message dated 97-02-20 12:11:48 EST, you write:
> << some scientists have speculated on acid rain levels high enough
>   to drive ocean ph to 4-5. This would have killed everything. Pretty
>   stupid suggestion.
>   >>
> Not such a STUPID suggestion if volcanic activity was extreme!

Nothing alive today in the oceans can live in that ph. let alone in 
freshwater. Vertually all aquatic life would have become extinct.

Jim K.