From: "Antti Kurenniemi" 

"Geo."  wrote in message
news:45953767$1{at}w3.nls.net...
>> I feel a little sorry for some Republicans.  They've been forced to admit
>> that thier Administration lied through its teeth (and continues to lie)
>> about Iraq and international terrorism - and now they're finding it was
>> lying about global warming too.
>
> I'm certainly no fan of this administration so feel free to beat on them
> all you like however.. There is a difference between denying that global
> warming  is happening and denying that it is happening because of car
> farts.

I don't think anyone's saying it's "because" of human actions,
but that human actions are contributing to global warming in amounts that
are not only measurable but possibly problematic. Here are some links to
graphs, of which I have no clue at all how accurate or reliable they are,
but they're fairly interesting anyway.

First some ice-core measurements:
http://en.wikipedia.org/wiki/Image:Vostok-ice-core-petit.png . It seems
from that image that the cycles are pretty identical, and that we're
currently pretty much on top of one of the peaks of the temperature curve.
You'll notice how the temperature and carbon dioxide leves seem to go
pretty much hand-in-hand.

Then we have the carbon dioxide levels:
http://commons.wikimedia.org/wiki/Image:Carbon_Dioxide_400kyr.png . It
matches with the previous picture, except for the last couple of centuries
since the industrial revolution. That about doubles the last peak level to
a leve that hasn't been measured anywhere in the timeline of the last
400.000 years.

Then there's the carbin dioxide concentration levels in the past couple
hundred years:
http://commons.wikimedia.org/wiki/Image:Carbon_History_and_Flux.png . Seems
that recently, about since 1950, there is a definite turn upwards in the
curve.

For more graphs, you can always check here:
http://www.globalwarmingart.com/ . Some of them are pretty interesting, and
they seem to have fairly clear explanations although they could obviously
been drawn in kindergarten and then just posted all over the place.


Antti Kurenniemi

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