[lowken10]

To bad you core premise is incorrect. CO2 is not the driver of global temperature changes. If it was then ice core samples would show this. The ice cores show something completely different. The ice core data shows that CO2 levels respond to temperature changes. So temperatures go up and then hundreds of years later CO2 levels go up. Temperatures go down and then hundreds of years later CO2 levels go down.

What does drive global temperatures then? It is that huge ball of gas and fire in the sky commonly called the Sun.

So other then your core assumption being wrong your write up sounds interesting.

[mehrdadn]

Citations very much needed...

[segfaultbuserr]

First, this phenomenon is well known, and it's easy to find citations if you look at the raw data [0]. BTW, the cause of the periodic change in temperature is believed to be the periodic variation of Earth orbital eccentricity, obliquity and precession [1][2], which causes the Earth to receive more or less solar radiation.

> So temperatures go up and then hundreds of years later CO2 levels go up.

> CO2 is not the driver of global temperature changes.

Next, OP's argument is not a a good one. If you know p->q, it doesn't imply q->!p. Thus I reject OP's argument as invalid, unless more information can be added to improve the argument. In fact, q->p is entirely possible. It's how an oscillator circuit works.

And here's an interesting case: Perhaps the planet Earth is more similar to an electronic circuit than most people think. Although the idea of orbit variation can explain a lot of things, including the δ¹⁸O time sequence (an indicator of temperature) obtained from the ice core records, but some serious issues remain unsolved. If you convert the δ¹⁸O time series into the frequency domain via FFT (i.e. putting it into a "spectrum analyzer"), you expect to see a 413,000 years cycle spike which is the periodic change of Earth's eccentricity. However, this is not detected. There are many hypotheses, but the most interesting one is: perhaps Earth's climate is a nonlinear system worked like a frequency modulator. It transforms some AM "carrier" signals, such as the 413,000 years cycle, with astronomical information, to a FM signal in the δ¹⁸O time sequence. This paper attempts to demodulate it with limited success [3].

See? The climate of Earth is a complex system with a myriad of positive and negative feedback mechanisms that are still not fully understood. So if the OP wants to claim that CO2 is not important to the global temperature, he should attack the climate models instead (I really hope the model is wrong and the reality is much brighter), not presenting oversimplified statements.

It's not worth debating the issue further, per Guidelines,

> Please don't use Hacker News for political or ideological battle.

I shared the possibility that the Earth creates a FM signal that contains astronomical information, since it inspires intellectual curiosity, which is what the site exists for.

[0] https://en.wikipedia.org/wiki/File:Vostok_420ky_4curves_inso...

[1] https://en.wikipedia.org/wiki/Climate_change_feedback

[2] https://en.wikipedia.org/wiki/Milankovitch_cycles

[3] https://web.archive.org/web/20091211025437/http://www.geolab...