Climate Feedback (Positive & Negative)

Climate Feedbacks are atmospheric processes where a change in a variable, through interactions in the system, either reinforces the original process (positive feedback) or suppresses the process (negative feedback).

  • Positive Feedback: A process that is one type of climate feedback wherein some initial change in the climate causes some secondary change that in turn increases the effects of the initial change, essentially magnifying the initial effect. Three examples are 1) ice albedo feedback, 2) water vapor release, and 3) carbon release. Find detailed discussion with examples HERE.
  • Negative Feedback: Any process where climate feedback decreases the severity of some initial change. Some initial change causes a secondary change that reduces the effect of the initial change. This feedback keeps the climate system stable.Find detailed discussion with examples HERE. Examples include 1) Evaporation and Clouds, and 2) Blackbody Radiation. See links above.