The carbon cycle and why it's imbalanced

Explain the carbon cycle and why it's imbalanced as if you were talking to someone in your family that is skeptical of this science. This should be at least 8-10 sentences. Some additional resources will be handy. The link about how much hotter your hometown is now is interesting.
https://www.youtube.com/watch?v=yhlg9txl7yM&feature=emb_logo