Increased cloud cover resulting from warming temperatures may lead to either either cloud albedo forcing or cloud greenhouse forcing. Cloud albedo forcing is an example of a ________ feedback loop and cloud greenhouse forcing is an example of a ________ feed book loop.
A) negative; negative
B) negative; positive
C) positive; negative
D) positive; positive

Question

Quizplus · Accepted Answer

Cloud albedo forcing is a negative feedback loop because it has a cooling effect on the planet by reflecting more sunlight back into space. Cloud greenhouse forcing, on the other hand, is a positive feedback loop because it has a warming effect on the planet by trapping more heat in the atmosphere. Warming temperatures can lead to increased cloud cover, which can result in both cloud albedo forcing and cloud greenhouse forcing.

Increased Cloud Cover Resulting from Warming Temperatures May Lead to Either