Changes in the Earth's orbital configuration may lead to warming temperatures. These warming temperatures, in turn, may lead to the release of both CO₂ and CH₄. Increases in these gases may further warm the planet. This is an example of a
A) positive feedback loop.
B) negative feedback loop.
C) neither a positive or negative feedback loop.

Question

Quizplus · Accepted Answer

In a positive feedback loop, a change in one parameter leads to an increase in another parameter, which, in turn, leads to a further increase in the original parameter. In this case, as temperatures increase, the release of CO₂ and CH₄ increases, which further warms the planet, leading to even greater release of these gases. This cycle of warming and increased gas release continues, creating a positive feedback loop.

Changes in the Earth's Orbital Configuration May Lead to Warming