A big-picture view of current knowledge of the planet Venus, once thought to be a sister planet of Earth, includes the following facts:
The question of thermal balance on Venus in pdf format, i.e. with the formula which F.W. Taylor uses readable (which can't be done in html, at least by me...)
Venus Data: Why is raw data involving Venus being falsified at every level?
Thermal balance on Venus: A reply to the Venus-Young article on the Ediacara WWW page.
Venus Cycle Times: Changes in the cycle times of Venus within recorded history, by Ev cochrane
Babylonian writings indicate that Venus used to appear on the zenith of the night sky. That cannot happen in our present age.
Gunnar Heinsohn on the Sagan "Super Greenhouse" Theory:
If the Venus gases enable a runaway greenhouse effect of 800 degrees F wouldn't that allow us to solve all our energy problems, i.e., wouldn't that give us a perpetuum mobile? Shouldn't we put a Venus gas mix in a glass box, expose it to the sun and, then, reach a temperature sufficient to heat steam up to the level of driving turbines? Wouldn't we even have an advantage over Venus which, after all, cannot put a glass lid on its atmosphere?
David H. Grinspoon, in Venus Revealed notes that the planet is basically a sea of lava flow and what he terms a "Volcano World".
Studies of the planet's atmosphere beginning in the late seventies of this century noted a steep fall in atmospheric sulphur dioxide indicating a major spurt of volcanic activity just prior to that time. Grinspoon's descriptions should make anybody wonder how scientists could go on trying to claim that the 900 F. surface temperatures on Venus could be the result of a Sagan greenhouse effect, since such a claim obviously implies that all of those volcanoes have nothing to do with it.
Critics of the Velikovskian interpretation of these facts, acknowledging now that all raw data supports Velikovsky's claim that Venus is cooling and therefore should be out of thermal balance, are reduced to the claim thatthe planetary surface somehow would not allow heat to escape in the queantities required by the observations. The problem: they are using estimates of the planet's surface thickness derived from gravity measurements, which are totally unreliable. Real seismic measurements of the surface thickness have yet to be done.