Quote from Haroki:
3 choices:
1- cognitive dissonance
2- insanity
3- liar
Take your pick about what accounts for Dave's response.
Quote from Matt8200:
EIA gratefully acknowledges the following persons, who provided extensive technical reviews of draft versions of this report:
Could you please explain how the numbers are taken out of context?
Quote from Matt8200:
Yes I can:
"Water vapor is the predominant absorber of incoming solar radiation and a major contributor to the natural greenhouse effect. Scientists at the National Oceanic and Atmospheric Administration have reported that the atmospheric water vapor content in the stratosphere at mid-latitudes in the northern hemisphere has been increasing over the last 14 years."
"Lindzen and others argue that water vapor between 2 kilometers (800 millibars) and 16 kilometers from Earth's surface (the tropopause) is the primary determinant of the greenhouse effect. However, Shine and others argue that water vapor concentration in the lower troposphere is an equally important contributor to the greenhouse effect.
Quote from TGregg:
And not just on Earth but on Mars too! Man, that's some power right there. You'd think if we were that powerful we could fix liberals.![]()
You cannot debate the anthropogenic portion of the greenhouse effect before you distinguish what portion of the greenhouse effect is natural and what portion is anthropogenic . You have been trying do a correlation between changes in CO2 levels and temperature changes ignoring water vapor, the principle greenhouse gas. I posted a reference documenting its increasing levels so you simply cannot ignore it. You may try to argue that this is just positive feedback as hotter air holds more moisture but there is clearly something more occurring. There is 400,000 years of data showing temperature and CO2 levels oscillating. If the positive feedback between temperature and CO2 was the only mechanism driving the system then it would spiral out control (the famous hockey stick) and greenhouse effect would continue to increase until the atmosphere is fully saturated with water vapor. The historical data shows this is not case. Also the absorption bands of IR radiation between water vapor overlap. If you do the heat transfer calculations ignoring this fact then you come to the wrong conclusions.Quote from trefoil:
So, saying that water vapor is the principal greenhouse gas in regards to natural greenhouse effects is saying, in the context of a debate about anthropogenic effects on warming, precisely dick.
Some people here think water vapor concentrations don't change due to the 'rain out' factorThe same paper notes that water vapor has been increasing recently. This is because, of course, when you apply heat to water, mirabile dictu, it evaporates.
Wotta fuckin' surprise.
Oh so you are saying they are doing the opposite of what the IPCC does? Try finding something stating water vapor is a greenhouse on the IPCC website.Quote from trefoil:
Also, reading it for a 2nd time, it's obviously a political document. Whoever wrote that went to truly heroic pains to try to minimize discussion of man-made global warming effects, and maximize discussion of the natural kind.
Quote from Matt8200:
Oh so you are saying they are doing the opposite of what the IPCC does? Try finding something stating water vapor is a greenhouse on the IPCC website.
The IPCC is clearly not a political group, they just want to save the ice caps so all the polar bears will have a place to live.
Quote from Matt8200:
You cannot debate the anthropogenic portion of the greenhouse effect before you distinguish what portion of the greenhouse effect is natural and what portion is anthropogenic . You have been trying do a correlation between changes in CO2 levels and temperature changes ignoring water vapor, the principle greenhouse gas.
I posted a reference documenting its increasing levels so you simply cannot ignore it.
You may try to argue that this is just positive feedback as hotter air holds more moisture but there is clearly something more occurring. There is 400,000 years of data showing temperature and CO2 levels oscillating. If the positive feedback between temperature and CO2 was the only mechanism driving the system then it would spiral out control (the famous hockey stick) and greenhouse effect would continue to increase until the atmosphere is fully saturated with water vapor.
Some people here think water vapor concentrations don't change due to the 'rain out' factor