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Politics : Politics of Energy
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To: teevee who wrote (11185)7/13/2009 4:34:09 PM
From: RetiredNow  Read Replies (1) of 86355
 
Another reply to your post to add to my Wikipedia response.



Check out the CO2 levels on a geological timescale. You'll notice that we're actually in a CO2 impoverished era. That's good news, right? Doesn't that mean that humans can survive much higher levels of CO2, because the Earth has had higher CO2 levels in the past?

Wrong. Humans have not been around that long. Would humans have survived in previous geological periods of high CO2 levels? Not in our present evolutionary form. Abrupt CO2 level increases in regions of high volcanic activity has resulted in the death of animal life forms. If our atmosphere experiences runaway CO2 increases, then we will die.

We should all be concerned about whether we are setting in motion runaway processes that can result in our own extinction. If you aren't concerned with that, then at the very least, you should be concerned with the financial impact of a rapidly changing climate due to CO2 increases in our atmosphere.
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