No..the atmosphere of venus does not have a greenhouse effect. The first requirement of a greenhouse effect as described by climate science is that IR from the warmed surface heats the atmosphere. On venus, the atmosphere is so dense that almost no solar energy ever reaches the surface so the surface is not warmed by incoming energy.
And your explanation for the temperature of the Venusian surface would be what?
Then there is the fact that the dark side of venus is the same temperature as the light side even though night on venus is 58 days long. Explain how a greenhouse effect, as described by climate science keeps the dark side of the planet the same temperature as the daylight side during a night that last 58 days.
Gosh. It might make one think that atmospheric CO2 traps IR energy
Here on earth, the so called greenhouse effect starts bleeding energy even before the sun goes down...in fact, it starts bleeding energy as soon as the sun passes its zenith at "high noon".
Wrong. The system takes in energy at dawn. The rate at which it takes in energy increases till the zenith, then decreases through the afternoon, reaching zero once again at sunset.
The greenhouse effect, as described by climate science doesn't even begin to explain the temperature of venus...but the ideal gas law along with the incoming solar energy, predict its temperature very accurately....no greenhouse effect required.
Dear reader, this is where Same Shit, Different Day uses his insane contention that an atmosphere, compressed by gravity, generates an endless supply of energy and heats itself from its creation till the end of time, thus demonstrating that he flunked middle school physical science and never took another science class thereafter. If any of you think this witless idiot knows what he's talking about, I've got a bridge to sell you.