Yes, I'm aware of that. It clearly shows that temperature fluctuation is a natural phenomenon. Therefore, one could come to the conclusion that a warming trend is natural and humans do not contribute by emiting CO2 in the atmosphere.
What is interesting is that this data corresponds with data showing percentage of CO2 in the air. So we know that fluctuations in temperature and CO2 are natural and real. What is most troubling is that CO2 is at a 100,000 year high.
Nature has adjusted to these fluctuations by using CO2 sinks (oceans for one). What will happen in the future when Nature can no longer cope with an excess of CO2?
posted on 10/03/2003 9:05:25 AM PDT
(You don't need a weatherman to know which way the wind blows)
"What is most troubling is that CO2 is at a 100,000 year high."
It may not be as troubling as at first look, if we consider that the current 370 CO2 is only 22 percent higher that the highest 304 from Vostok ( as I recall from the table of data) (close to this on graph).
We don't know the accuracy of CO2 and Temperature data from 300,000 years ago. I suspect +/- 22 percent accuracy of the data would be very good. The ~304 years ago may have actually been ~370.
In fact, a couple of the web references state that the CO2 concentrations lag the temperature data by 1000 to 4000 years. This means that we need to learn much more.
But it all is very interesting.
posted on 10/03/2003 11:00:07 AM PDT
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