[thrill]

It doesn't. The atmosphere is not a closed system as upper limit varies. The global temperature strongly correlates to the sun's activity and our distance from it, and nearly not at all to anything else, other than cataclysmic events such as huge volcanoes, asteroid strikes, etc.

[ncmncm]

Not true. Very short term effects correlate to solar exposure, where CO2 effects have a built-in long-term filtering that stretches out the response time, averaging out shorter fluctuations.

Temperature is increasing not because of increased insolation, but because of increased retention.