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Originally posted by DrZERO
So what you are saying is that the energy absorbed in the troposphere would warm that area of the atmosphere first, then the warming would spread to surrounding areas including the surface of the Earth?
Originally posted by melatonin
Originally posted by DrZERO
So what you are saying is that the energy absorbed in the troposphere would warm that area of the atmosphere first, then the warming would spread to surrounding areas including the surface of the Earth?
In a way, yes. It sort of 'traps' it, but, again, not an ideal way to view it. It's more a slowing of radiative transfer.
GHGs can be viewed as 'floppy' molecules. They like to absorb energy which enables them to bend their bonds. So they absorb energy, and vibrate and move faster.
All temperature is is the average rate of movement of molecules. Apply energy, molecules move faster. GHGs actually pass energy on by colliding with other molecules (thus, the ball analogy is less than ideal).
Originally posted by DrZERO
Because the data suggests that upper-atmospheric temperatures have remained constant as the surface temperatures of some areas of the Earth have slightly risen over the past 100 years. Can you explain how this fits into your analogy?
Originally posted by DrZERO
Troposhphere.
Previously reported discrepancies between the amount of warming near the surface and higher in the atmosphere have been used to challenge the reliability of climate models and the reality of humaninduced global warming. Specifically, surface data showed substantial global-average warming, while early versions of satellite and radiosonde data showed little or no warming above the surface. This significant discrepancy no longer exists because errors in the satellite and radiosonde data have been identified and corrected. New data sets have also been developed that do not show such discrepancies.
Originally posted by melatonin
Originally posted by DrZERO
Troposhphere.
It is warming.
Previously reported discrepancies between the amount of warming near the surface and higher in the atmosphere have been used to challenge the reliability of climate models and the reality of humaninduced global warming. Specifically, surface data showed substantial global-average warming, while early versions of satellite and radiosonde data showed little or no warming above the surface. This significant discrepancy no longer exists because errors in the satellite and radiosonde data have been identified and corrected. New data sets have also been developed that do not show such discrepancies.
linky
Early data was contaminated by infusion of stratosphere effects.
Many new model simulations of the climate of the 20th century have been carried out . . .
For observations during the satellite era (1979 onwards), the most recent versions of all available data sets show that both the low and mid troposphere have warmed. The majority of these data sets show warming at the surface that is greater than in the troposphere.
. . . the majority of observational data sets show more warming at the surface than in the troposphere . . .
Originally posted by melatonin
CO2 levels don't appear to have been this high for at least 650,000 years.
We don't expect models to be perfect, just good enough to give an insight into future scenarios.
I'm sure those who might suffer drought (e.g., africa) and floods (e.g., bangladesh) won't be so chuffed.
Aye, but we can all make mistakes with maths, I guess. Indeed, we can also be wrong about many things, some even might suggest that CO2 levels were greater than now, 2000 years ago...
Originally posted by UScitizen
If there ever is a carbon tax where will the money go and what will it be used for? . . .
Originally posted by DrZERO
TraderOW, you hit the nail on the head. All this supposed climate info is generated from MODELS and SIMULATIONS that are suppose to predict the "climate" 100+ years from now.
Previously reported discrepancies between the amount of warming near the surface and higher in the atmosphere have been used to challenge the reliability of climate models and the reality of humaninduced global warming.