Climate Change and Feedback Mechanisms

• Feedback mechanism - when physical processes in the earth-atmosphere system further impact the initial change

• if the impact is such that the initial perturbation is enhanced, then it is called a positive feedback mechanism -->

• if the impact is such that the initial perturbation is reduced, or weakened, then it is called a negative feedback mechanism.

• How can the scenario shown to the right --> be modified to produce a negative feedback cycle?????