...And the reason you still can't show us one (1) lab experiment showing how a 60PPM increase in CO2 raises temperature is....
Equipment needed:
Two large, thick-wall, insulated pressure vessels with IR transparent sealed ports.
IR generator
dry Nitrogen source
dry CO2 source
precision temp. measurement equipment
vaccuum pump
Purge the two vessels, carefully fill one container with 100% dry Nitrogen and then fill the other with 99.99994% dry Nitrogen and 0.00006% dry CO2. Seal both vessels affix IR source to IR transparent port and power up, await equilibration of systems (shouldn't take more than a few hours--EDIT--depending upon the size of your samples! --end EDIT--), and then measure the ambient air temperature within the container to the nearest ten thousandth of a degree. Carefully repeat entire procedure three times carefully recording all data. At this level the temperature differential will be small, but if laboratory practices are duly rigorous, you should be able to record a significant difference between the to sample atmospheres in accord with mainstream physics findings and understandings.
There are more simple ways to test and verify the GHG potential of CO2 (or any other GHG) but this methodology fulfills your specifications and will produce verification of the more traditional obtained results. If you have any questions or problems please feel free to ask or share them.