Global warming: Humans' fault, or the sun's fault? | Thread profile

I'm trying to sort out the science from the politics and emotions (subject: global warming). Wondering if anyone has seen both Al Gore's video AND the recent one titled "The Great Global Warming Swindle," which can be viewed at this link: http://www.powerlineblog.com/archives/017028.php If so, I'd like to see some objective reactions to the arguments both sides are making. I read ...

If you are going to get really really technical, pretty much all the heating of the earth come from the sun

Measurements of the suns output have been taken from outside of the atmosphere for almost 30 years. No significant change outside of its usual 11 year cycle in that time period.

I agree with korjik...it is the sun's fault. Why? Because without the sun we would have no global warming.

Quote: Originally Posted by Steve2 I'm trying to sort out the science from the politics and emotions (subject: global warming). Wondering if anyone has seen both Al Gore's video AND the recent one titled "The Great Global Warming Swindle," which can be viewed at this link: http://www.powerlineblog.com/archives/017028.php If ...

That's a pretty good sum up.

Yup. That is definitely a good sum up. I do have one question tho. If the CO2 concentration saturates the IR absorption, dosent any addition afterward have no increased effect? My understanding is that at saturation the CO2 absorbs and reradiates 100% if the radiation on the appropriate band.

Quote: I do have one question tho. If the CO2 concentration saturates the IR absorption, dosent any addition afterward have no increased effect? No, because although there is a narrow peak where all infrared radiation of a certain wavelength is absorbed, CO2 also absorbs infrared radiation of other wavelengths. So, as mentioned in the summary, a ...

If you want to debunk the Sun is warming up the planet argument, you simply need to reverse the Energy/Dist = Temperatue logic to find out what a 1.8 degree change on earth due to suns output would mean. I think you would find that by revering this would lead one to mathmatical conclusion the sun has started moving into the red giant phase, which we know it has't done yet.

Quote: Originally Posted by dgavin If you want to debunk the Sun is warming up the planet argument, you simply need to reverse the Energy/Dist = Temperatue logic to find out what a 1.8 degree change on earth due to suns output would mean. I think you would find that by revering this would lead one to mathmatical conclusion the ...