That is fine if it reflects how you believe the mechanics of the greenhouse effect operate.
So lets look at your link. Right off the bat, they say that 70% of incoming sunlight reaches the surface of the earth.
When the
sun's rays hit the
Earth'satmosphere and the surface of the Earth, approximately 70 percent of the energy stays on the planet, absorbed by land, oceans, plants and other things.
Then they go on to describe the hypothetical mechanics of the hypothetical greenhouse effect:
This absorption-radiation process keeps the Earth in radiative equilibrium: The sun's radiation continually strikes the Earth, warming it; the warm Earth emits some of that radiation back into space, cooling itself. The more solar radiation the Earth absorbs, the more radiation it releases.
Some of that released radiation makes it into space, and the rest of it ends up getting reflected back down to Earth when it hits certain things in the atmosphere, such as carbon dioxide, methane gas and water vapor -- the car windows. The heat that doesn't make it out through Earth's atmosphere keeps the planet warmer than it is in outer space, because more energy is coming in through the atmosphere than is going out. This is the greenhouse effect that keeps the Earth warm.
So that is the greenhouse effect, and that is how you intend to explain the temperature on venus. It would seem that for the greenhouse effect to work, the planet must absorb incoming radiation from the sun...
Your other link claiming that Venus was the unfortunate victim of a runaway greenhouse effect finds itself on the wrong side of science as soon as they made that claim. The greenhouse effect hypothesis claims that incoming energy from the sun is absorbed by the surface and then emitted back into the atmosphere. On Venus, almost no sunlight ever reaches the surface of the planet.
Here, from Geogia Tech...a discussion on powering equipment on the surface of venus.
[clip]
Solar Power is a common technology used when designing a power system for an extraterrestrial environment. There are two ways you can harvest energy from the sun and utilize it on the surface of Venus. The first way is by populating the lander with solar panels. However, because of the dense atmosphere on Venus, little sunlight reaches the surface. The light level is roughly equivalent to the illumination during a rainy day on Earth [1].Therefore, the amount of area needed to produce the amount of power required makes this design unrealistic.[/quote]
So at high noon on venus, it is never brighter than here on earth on a rainy day...and according to Georgia Tech, solar energy is not a viable option for powering equipment on Venus. That sort of puts a crimp in a greenhouse effect as you described it. There isn't enough sunlight striking the surface of the planet to cause the sort of heat one finds on venus. Then your greenhouse effect link goes on to say that the atmosphere acts like a car window.
Some of that released radiation makes it into space, and the rest of it ends up getting reflected back down to Earth when it hits certain things in the atmosphere, such as carbon dioxide, methane gas and water vapor -- the car windows.
The windows in a car, or greenhouse make the interior warm because they block convection and conduction to the outside. Are you going to try and tell me that CO2 blocks convection and conduction? That particular statement is pure malarky. Secondly, they claim that energy is "reflected" back to the surface. In the first place, CO2 has no power to "reflect" anything. It absorbs and emits and even that in a very narrow wavelength that is overwhelmed by water vapor. Secondly, energy won't move from the cooler atmosphere to the warmer surface of the earth. Don't believe me, just ask the second law of thermodynamics. Energy won't move from a cooler object (the atmosphere) to a warmer object (the surface of the earth).
In addition, regarding pressure and temperature...you said:
Yes, it is warmer at lower elevations due to "pressure", specifically, to a thicker atmosphere which more efficiently traps heat. It is basic science, of the sort that I linked to earlier and you totally ignored.
There is no heat trapping. Are you aware of the ideal gas laws? PV=nRT=NkT? Where P=absolute pressure, V=absolute volume, n=the number of moles of a gas, R=universal gas constant, n=number of molecules, k=the Boltzman constant?
It tells you that if you put pressure on a gas, even if you do it in complete darkness, the temperature will increase. It has nothing to do with "trapping" heat. The pressure puts the molecules in closer proximity and their increased collisions create the heat. I repeat, there is no trapping. Again, the temperature at the bottom of the troposphere of Uranus is 33K warmer than the temperature at the bottom of the troposphere on earth even though Uranus is 30x further away from the sun than earth and the atmosphere there is almost entirely composed of helium and hydrogen. It is warmer there at the bottom of the troposphere...on the coldest planet in the solar system than it is here on earth because of pressure...not heat trapping, not a greenhouse effect, not anything but pressure.
Likewise on Venus. There is no greenhouse effect as your link and by default, you have described because hardly any light actually reaches the surface of the planet...a weak, watery daylight at its brightest. Venus is hot because the atmospheric pressure is 90 times greater than it is here on earth....go visit the gas giants...there are incredibly hot temperatures down in those atmospheres because of pressure, not because they are trapping heat. From those planets, the sun looks like a bright star...not the flaming ball we see and yet, temperatures down in the atmospheres are very hot. Pressure, not heat trapping.
Look at the various planets with atmospheres....At a level in the atmosphere where the pressure equals 1 bar, or pressure equal to that on the surface of the earth the mean temperatures in F are as follows:
Venus = 100
Earth = 68
Jupiter = 53
Saturn = 50
Uranus = 23
Neptune = 17
But when you look at the incoming solar radiation:
Venus = 2614 watts per square meter
Earth= 1368 watts per square meter
Jupiter = 50.5 watts per square meter
Saturn = 14.9 watts per square meter
Uranus = 3.71 watts per square meter
Neptune = 1.51 per square meter
The greenhouse hypothesis simply is not supported by these numbers. If you account for the differences in the incoming solar radiation, these planets have nearly the same temperature in their atmospheres where the atmospheric pressure equals 1 bar. Even way out on Uranus and Neptune where there is damned near no energy incoming from the sun the temperatures (accounting for the difference in incoming solar energy) are almost the same as on earth.
The greenhouse hypothesis doesn't predict anything like this and in fact, only seems to work on earth because it is an ad hoc construct only meant to estimate earth's temperature....if it were actual science based on actual physics, it could accurately predict the temperature of any planet with an atmosphere when in fact, it can predict the temperature of none of the planets in the solar system with atmospheres.
The ideal gas laws, combined with adjustments for incoming solar radiation can accurately predict the temperatures of all the planets in the solar system with atmospheres because they are actual science, not pseudo science for the purpose of promoting a hoax.
, as to the other points you've been ignoring, perhaps you'd like to address those?
What other points do you think you made?