How many times am I going to have to point out to you...you are citing a model and confusing that with reality.
http://www.nasa.gov/topics/earth/features/co2-temperature.htm
"Our climate modeling simulation should be viewed as an experiment in atmospheric physics, illustrating a cause and effect problem which allowed us to gain a better understanding of the working mechanics of Earth’s greenhouse effect, and enabled us to demonstrate the direct relationship that exists between rising atmospheric carbon dioxide and rising global temperature," Lacis said."
https://www.skepticalscience.com/empirical-evidence-for-co2-enhanced-greenhouse-effect.htm