As air temperatures increase, evaporation increases. Warmer temperatures also increase the capacity to absorb water vapor. More water vapor in the atmosphere accelerates the greenhouse effect. As temperatures increase further, more water vapor can enter the atmosphere, causing temperatures to increase even more. This is an example of a(n)
A) positive feedback loop.
B) negative feedback loop.
C) neither a positive or negative feedback loop.

Question

Quizplus · Accepted Answer

This scenario describes a positive feedback loop, where a change in one variable (temperature) causes a further change in the same direction, leading to further changes and amplification of the initial effect. In this case, warming temperatures cause increased evaporation, which in turn leads to more water vapor in the atmosphere, further increasing temperatures and evaporation. This process continues and amplifies, leading to significant changes in the climate system.

As Air Temperatures Increase, Evaporation Increases