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For years, planetary science held that the surface temperature of Venus would be only slightly hotter than the Earth... cool enough that liquid water would exist. But that prediction was blown out of the water by our actual space probe visits to Venus. Instead of "slightly hotter" they found a world with a surface temperature of about 450º Celsius (723 Kelvin), hot enough to keep lead and tin in a molten state.

What is your point? Are you trying to add credibility to the point that the CO2 in Venus' atmosphere is what has caused the temperature to be that high, contrary to your prior post? If so, good. I agree that the greenhouse effect on Venus is why the temperature of Venus' atmosphere is so high.

No... because I don't think that the CO₂ is the cause of the high temperature. It may help maintain it ... a bit.

For the runaway greenhouse effect to take place, the temperature on the planet has to reach first the boiling point of water (100º C) and then the sublimation point (>700º C, I'm told) of the supposed limestone which gets higher and higher as the atmospheric pressure increases. This carbonate and rock sublimation has to occur underground in deep rocks which are excellent insulators.

Perhaps this all happened... but the evidence on Venus has to be looked at in its totality... not based on theories that so far have not been very predictive to real world findings.