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Re: fHuman vs. natural influences on the environment




>Global warming is going to happen over one or two lifetimes. 
 If
>it occurs as predicted, it's simply the equivalent of a 
Pinatubo on
>the plus side, happening a couple of times per decade, and 
cumulative
>instead of a one-time event.

Admittedly, there are events which have altered the 
atmosphere's temperature.  However, if the probability is 
almost nil over one lifetime, I do not consider these events 
to be particularly relevant.  Regarding your statement that 
global warming is going to happen over one or two lifetimes, 
there are a couple of questions that may impact what we want 
to do about it.

How much warming will occur?

How much will occur over a specified time period?

Is this change so fast that nature cannot adapt to it?

Is this change so fast that man cannot adapt to it?

One pattern I have noticed in these postings is that people 
seem to insist that no environmental impact whatsoever occur 
as a result of human activities.  There is even an 
implication that humans intervene in a way that we keep 
everything constant where it is.  These implications do not 
seem reasonable to me.  In other words, if you want to lessen 
the impact that humans have on this planet, a good place to 
start is with the number of humans on this planet.  Some of 
the posters in this group may be addressing the symptom, 
rather than the problem.


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