No, thats simply not true.  We do understand the contribution of the all the
randomness of nature.  Mankind has simply pushed nature past the point were
all the natural mechanisms for compensating for things like volcanoes can
adapt to the additional changes we are introducing.  Perhaps the most
concise explanation of the various contributions to climate change I've
found is the chart found here:

http://www.sciam.com/article.cfm?articleID=A1E03678-E7F2-99DF-349533FA77189693&sc=I100322

(click on the image to get an enlarged version).

Volcanoes aren't shown in that image simply because they don't contribute
enough.


On 11/6/07, Michael H. Collis <[log in to unmask]> wrote:
>
> Pardon me, Peter, but you're forgetting one thing: the randomness of
> nature.  If the Indonesian volcano blows it's top like it did right before
> the "Little Ice Age" we might be heading into winter, not summer. We don't
> know if or when nature will rear up and bite us in the butt.  I do think
> mankind has had a detrimental effect on nature, but I don't think it's as
> big as some think.
>
>
-- 
Peter Hunsberger

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