Re: Liebig's Law and the limits to growth

[Rosser Jr, John Barkley]

Boddhi,
     I'm not going to pursue this further, but I shall 
simply note that I was reporting to you what the current 
scientific consensus increasingly is.  I was aware of Robin 
Hahnel's addition and am aware of some other pieces of 
evidence, all pointing in the same direction.  Several of 
your hypotheses could either have reinforced or been 
strongly reinforced by what now almost certainly appears to 
have been a very big asteroid hit kicking up CO2 at the 
right time.
     But, I also said that, of course, we shall never know 
for sure.  Heck, maybe the dinosaurs bought into the stock 
market when the DJI hit 9200!
Barkley Rosser
On Tue, 28 Apr 98 11:21:27 EDT boddhisatva 
<[EMAIL PROTECTED]> wrote:

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>                 C. Rosser,
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>         No, I'm sorry but you are off.  We know that there is evidence of
> exogenous shocks, most compellingly an asteroid hit, during the extinction
> period.  What we do not know is what that shock caused.  Asteroid hits
> don't kill a planet full of dinosaurs.  Small dinosaurs survived well, yet
> their cold tolerance is even worse than that of large dinosaurs.  What
> actually happened once the environment changed is a matter for
> speculation.  It could be that the environmental change merely prevented
> the dinosaurs from coming back from an existing threat.  We have
> relatively little idea what plants were like at that time.  There could
> have been a dramatic shift in plant biology.  New species with poisonous
> defences could have sprung up.  Trends in forestation could have been
> responsible.  The dinosaurs could have grazed themselves out of existence. 
> It's impossible to know. 
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>       The important thing is to keep an open mind.  The message of
> evoutionary biology is that things *always* change.
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>       peace
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-- 
Rosser Jr, John Barkley
[EMAIL PROTECTED]