Models as Tools and Feedback Loops
Activities
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| 2. A good example of a negative or self-regulating feedback loop is a heating system with a thermostat. Click on the link to interact with the heating and cooling system of this home. |
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| 3. Pollution can contribute to melting glaciers and other ice on the planet by changing the albedo of these surfaces. Soot-darkened ice retains more sun light, contributing to the melting process. Click on the image to see a NASA animation illustrating solar radiation being absorbed and heating the environment, thus intensifying a feedback loop: a warmer planet yields more melting ice and more warming. |
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