https://youtu.be/Ge0jhYDcazY https://youtu.be/Ge0jhYDcazY This is a video demonstration. All you need is 2 bottles under the same amount of illumination with

https://youtu.be/Ge0jhYDcazY https://youtu.be/Ge0jhYDcazY This is a video demonstration. All you need is 2 bottles under the same amount of illumination with different amounts of co2. Sorry, I should have said, under illumination, and the temperature will reach a higher equilibrium with co2 in it, but it will not rise without limit.