This does not mean that CO2 in the atmosphere can't explain the atmospheric temperature.
I assumed that was what you meant. ;^)>
But that does bring up another anomaly... explaining the atmosphere. The atmospheric pressure of Venus is about 90 times that of the Earth's, its supposed twin. How can this be? Why hasn't Venus' atmosphere sublimated into space over the eons? Its depth is a little greater than Earth's, extending to low Venus orbit (about 155 miles). Are heavier, denser gasses the explanation? Can the existence of our Moon and its tidal forces completely explain the difference? Planetary scientists have stated that Venus probably had an atmosphere similar in composition and density to Earth's in the distant past... yet today it is far different. Where did all the (97%) CO2 come from to increase the density and pressure?
Third anomaly... The surface of Venus more closely resembles the surface of the Moon than that of Earth. It is pockmarked with over 1000 of what are assumed to be meteor craters that we have mapped so far. These are postulated (read: pulled a figure out of their nose) to have occurred after 500 million years ago... when Venus' surface was "resurfaced," which is also a "fact" that is really not in evidence. (That "resurfacing" is an assumption based on the fact that they see no remnant craters that seem to be older than their assumed 500M year figure. . kind of circular reasoning, I think)
Yet Earth, Venus' supposed twin, is not. Venusian winds are measured at much higher velocities than those on Earth. Although surface winds are fairly moderate, they are very dense and carry erosive sand and stones. In addition, far more tornados are observed at much higher velocities than Earth's. Why, then are not the craters quickly eroded away. Is water which exists on Earth that much more erosive than an atmosphere of 90 Bars carrying erosive materials? How, indeed, do the meteors get through an atmosphere 90 times denser than Earth's without burning up due to a far higher amount of friction? Why are there so many craters larger than 3km in diameter (up to 285km) and why doesn't Earth, which also received a similar bombardment, retain more pristine craters? Even the Moon's craters are more eroded than are Venus' (they assume by micro-meteors).
The number of large craters ( greater than 50km) on Mars seems to be triple the number on Venus although there are many more small craters. These Martian craters are also far more eroded than are Venus' yet Mars' atmosphere is less than 1/100th the density of Earths... or 9000 times less dense than Venus's atmosphere and wind is supposedly the primary mode of Martian erosion.
All of this seems to be more indicative that Venus is a young planet still experiencing its cooling phase.