Which of the following climate feedback systems is considerably uncertain in that we do not know whether the net effect is a positive feedback or a negative feedback?

Question

Quizplus · Accepted Answer

Clouds represent a significant uncertainty in climate models because they can both cool the Earth by reflecting sunlight back into space (a negative feedback) and warm it by trapping heat (a positive feedback). The net effect of clouds on the Earth's climate system is complex and not fully understood, making it a subject of ongoing research.

Which of the Following Climate Feedback Systems Is Considerably Uncertain