From: Adam <""4thwormcastfromthemolehill\"{at}the field.near
the bridge">

Geo. wrote:
> "Robert Comer"  wrote in message
> news:45d85358{at}w3.nls.net...
>
>> Not correct, a 5 degree change will put us smack dab in the middle of
>> the methane hydrate melt just like the permian extinction.
>
> The permian extinction was caused by global cooling not warming. It was
> the FREEZE that they think killed off so much life. As I said, warm is
> more life, cold baaaaaad..
>
>>> Also a full melt of the northern ice cap (unlikely) and the resulting
>>> sea level rise means less than a 2% change in land mass.
>>
>> A *LARGE* percentage of people live in that 2% difference...
>> (including me.)
>
> You moved because of snow, you now saying you won't move because of
> floods? One move per life time? Is this some sort of new rule .
>
>> Read about what happened previous to and during the permian
>> extinction. The small swings you are talking about is not necessarily
>> what is going to happen this time.  One clue is that during the
>> permian extinction, global average temperature only raised 10 degrees F.
>
> http://park.org/Canada/Museum/extinction/permcause.html
>
> Although the cause of the Permian mass extinction remains a debate,
> numerous theories have been formulated to explain the events of the
> extinction. One of the most current theories for the mass extinction of
> the Permian is an agent that has been also held responsible for the
> Ordovician and Devonian crises, glaciation on Gondwana. A similar
> glaciation event in the Permian would likely produce mass extinction in
> the same manner as previous, that is, by a global widespread cooling
> and/or worldwide lowering of sea level.
>
> Cold=baaaaad...
>
> Geo.

That is an outlying theory whose main problem is that ice ages are
basically caused by greater precipitation when it is cold rather than cold
per se. The problem with that is that a single large continent has much
less surface area in contact with the main body of water i.e. the sea &
thus the vast bulk of gondwana would have been (& according to the
geology was) desert & deserts (eg those in Antarctica) have too little
water to support glaciation.

Adam

--- BBBS/NT v4.01 Flag-5