WeatherRusty, on 05 January 2010 - 08:29 AM, said:
I must dispute that the Globe is cooling given the fact that all of the past 10 years represent the warmest 10 in the instrumental database with the single exception of 1998.
The past decade"s anomaly is about 0.2C above that of the 1990's.
Models don't predict predict cooling on the short term because they are not looking for short term variation. They are linear models designed to indicate the long term trend based upon various emissions scenarios.
To your final paragraph, heat is not transferred from high above as you believe greenhouse theory to proclaim. That in fact would violate the 2nd law if it were how it was supposed to work.......The atmospheric greenhouse effect slows the loss of radiant energy (IR radiation) from the surface to space. A surface that cools more slowly ends up being a warmer surface. This takes place below the tropopause, not the stratosphere. The effective temperature of Earth is 255K degrees, yet the surface is 33K warmer than that due to the greenhouse effect. The 255K temperature exists on average at about 16,000' within the troposphere. As viewed from space the temperature of the Earth is 255K, below that level the atmosphere is opaque to IR because of greenhouse gases in the atmosphere and it grows progressive warmer down to the surface due to compression. Heat is not transfered from a colder area to a warmer area, radiation travels in all directions including downward but don't confuse radiation with "heat" or kinetic energy.
OK...lets at least come to an agreement on the current measurements MR. Rusty. From where are you getting your facts that the world is not cooling lately?
Secondly..although I admit it is a argument in semantics...then you do admit the term "Greenhouse" is a misnomer. Greenhouses work through the prevention of free convection of heat. Radiant energy does travel in all directions yes...but the atmosphere does not have a glass ceiling. There is free convection through all layers. So heat that is trapped in the upper levels would be free to convect to the even cooler upper layers above that. Ultimately, any iradiate energy transfer will cause air temps to increase and then the atmosphere will convect that heat to the highest levels where it should disipate into space.
As for linear long term trends...is 10 years not enough time to establish a trend? I have read in multiple sources that there has not been any statisically meaningful warming in 10 years and in fact the globe is now cooling.
And from what I have read the stratosphere above the tropics is not warming as predicted by the models.
Also, you have not addressed my basic sniff test question. Do you agree that the oceans degass CO2 when they warm? IF so, what natural mechanisms have been in place to prevent naturla run-away warming...as vast quantities of CO2 are relaeased from the oceans during a natural warming cycle what natural mechanisms would prevent a continuous positive feedback loop of more and more warming? There must be something in place and since we have not experienced this run-away warming are not these mechanisms more significant than the contribution of CO2 into the atmosphere? And are these natural negative feedback variables part of the AGW models? If not...then the models are insufficiently designed.
But get back to the first point. Were the 1930's not the warmest decade on record? Is the earth still warming now or not?