I'm reading this article and I'm not understanding it. If someone could help me understand it in laymans terms I would really appreciate it. It is dealing with climatology if that helps. Thanks!
What is the difference between a positive and negative feedback loop?
Negative feedback loop:
Corrects for the error and keeps correcting it so that the error becomes smaller and smaller.
Example fo negative feedback loop: Consider the thermostat of your house. When the temperature falls, the thermostat makes the heater go on and makes the temperature go up again. An error in temperature causes the thermostat to act in such a way that the temperature comes back to the set value.
(the controller makes a negative effort with respect to the error. In this case the error was due to temperature going down with respect to set temperature. So error was negative. So the controller makes a negative feedback of negative error whcih is a positive effort and makes the temperature go in a positive direction)
Positive feedback loop:
Changes the error to become lareger and larger error drives the loop to make the error even larger.
example of positive feedback loop in climate: when earth's temperature goes up, water becomes water vapour and remains in atmosphere. More water vapor in the air causes greater green house effect (water vapor is like CO2), increases the temperature of the air even further and this causes more water to become water vapor and the temperature keeps increasing to larger and larger number.
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