What happens when the amount of CO₂ in the air is increased?

In this simulation, you will be able to change the amount of CO₂. You can change the partial pressure of CO₂ using the slider.

Proceed as follows:

1. Move the cursor to increase the amount of CO₂ in the air. You will directly notice the molecules appearing or disappearing.
2. Look at the table on the right of the screen. Why is the scale red?
3. Press ‘Play’ and observe the table of molecules and the screen simultaneously.