fyi
Bookmark.
If anyone makes the argument that CO2 caused the warming on Venus:
The atmosphere of Venus is 90 times thicker than Earth’s and is 96% carbon dioxide, making the atmospheric carbon dioxide concentration on Venus 300,000 times higher than on Earth. Even so, the high temperatures on Venus are only partially caused by carbon dioxide; a major contributor is the thick bank of clouds containing sulfuric acid. Although these clouds give Venus a high reflectivity in the visible region, the Galileo probe showed that the clouds appear black at infrared wavelengths of 2.3 microns due to strong infrared absorption. Thus, Venus’s high temperature might be entirely explainable by direct absorption of incident light, rather than by any greenhouse effect. The infrared absorption lines by carbon dioxide are also broadened by the high pressure on Venus, making any comparison with Earth invalid.
http://brneurosci.org/co2.html
Yup. The issue is the absoption spectra, and CO2 absorbs all the light in its absorption spectra within 10 meters of the ground.