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I truly feel sorry for kids these days, the class room is increasingly being used to push a brand of science, and civil thought.
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Three Points:
1) The change in CO2 occurs between 500 and 1000 years AFTER the change in temperature, meaning it's more likely the change in CO2 was caused by a change in temperature due to oceans out gassing CO2 as they warm and dissolving CO2 as it cools. Also, the change in CO2 concentrations in proportion to temperature is too large to be physically possible, i.e. a change in CO2 concentration from 180 to 280 ppm can not produce a 10 degree temperature change. Clearly this iconic plot can not be used to argue the case for catastrophic warming from anthropogenic green-house gases, e.g. carbon dioxide, as Al Gore and other have promoted.
2) There are several articles out there questioning the accuracy of this type of atmospheric CO2 concentration reconstruction from ice cores along with similar studies. Essentially, the author experimentally show these plots suggesting CO2 concentrations changing with temperature are generated as a result of an artifact of the ice matrix.
3) There is no clear proof that CO2 concentration is a significant driver of temperature. There have been periods in Earth's history where CO2 concentrations were 10 times what they are today yet the earth was in ice house conditions, i.e. ice age. There is no evidence which suggests CO2 is a significant driver of Earth's climate. In fact, most data I've seen says anthropogenic CO2 has a much smaller effect on temperature then is portrayed by the IPPC, James Hansen, Gore, among others.
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Depends on who is teaching them.
The hook is to teach them to think for themsleves using rational thought and FACTS.
I'm arguing this same topic on at least 3 other boards right now, so here's a very well thought out post somone else from somewhere else posted![]()
The greenies have got to be in serious overdrive trying to stay in front of this stuff.
On the winter solstice in 2012, the sun will be aligned with the center of the Milky Way for the first time in about 26,000 years. This means that whatever energy typically streams to Earth from the center of the Milky Way will indeed be disrupted on 12/21/12 at 11:11 p.m. Universal Time.
SOMETHING is going to happen, can't say how much or how bad.
Correctomundo... I find it interesting that the sun can power the earth and provide us with everything, yet it cannot be responsible for changes / perturbations in the weather.....
Depends on who is teaching them.
The hook is to teach them to think for themsleves using rational thought and FACTS.
How can the sun power our heavy Trucks? Construction Equip. Battery Tech. is not good enough to do this.
How can the sun power our heavy Trucks? Construction Equip. Battery Tech. is not good enough to do this.
How can the sun power our heavy Trucks? Construction Equip. Battery Tech. is not good enough to do this.