On the Role of CO2 in the Global Warming

I wanted to study how much carbon dioxide is needed to produce a maximum warming effect in a greenhouse. So, I have build some mini-greenhouses, whose CO2 content were varied and temperatures  measured. Dia 1.

Tools for adding the carbon dioxide Dia 2.

Mini-greenhouses were directed to sun with my solar tracking sundial. Dia 3.

Results of my experiment are available  here. I hope that somebody, who lives in a place with more sunshine, will continue the experiment.