Since this is not my area of expertise, I searched Google under the key words ""burning fossil fuels" "imbalance in the carbon cycle"" to get these possible sources:
http://www.google.com/search?client=safari&rls=en&q=%22burning+fossil+fuels%22+%22imbalance+in+the+carbon+cycle%22&ie=UTF-8&oe=UTF-8
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
Describe how burning fossil fuels has created an imbalance in the carbon cycle.
1 answer
1 answer