> how do statisticians prove other factors are not responsible? satellite observations over ~30 years have tracked the amount of outgoing radiation in various

> how do statisticians prove other factors are not responsible? satellite observations over ~30 years have tracked the amount of outgoing radiation in various regions of the electromagnetic spectrum over time. The amount of outgoing radiation has decreased, only in the spectra that co2 and methane block. The amount of reduction is as expected given the amount of co2 and methane we have added to the atmosphere: chart: http://static.skepticalscience.com/images/harries_radiation.gif http://static.skepticalscience.com/images/harries_radiation.... This is just one of many ways we can confirm the attribution of climate change, it is IMHO the most clear, and obvious one, and the one for which I have never seen a refutation that even sounds serious, so I like to use it. There are many other ways to confirm this though.