claim: Unlike the simple example of positive feedback we learned in high school, the increase from every round of feedback gets smaller and smaller, in the case of the enhanced greenhouse effect.
evidences.evidence_id: Climate change feedback:128
evidences.article: Climate change feedback
evidences.evidence: Since water vapor is a greenhouse gas, the increase in water vapor content makes the atmosphere warm further; this warming causes the atmosphere to hold still more water vapor (a positive feedback), and so on until other processes stop the feedback loop.
evidences.votes: NOT_ENOUGH_INFO NOT_ENOUGH_INFO NOT_ENOUGH_INFO
evidences.evidence_id: Climate change feedback:2
evidences.article: Climate change feedback
evidences.evidence: Positive feedback amplifies the change in the first quantity while negative feedback reduces it.
evidences.votes: NOT_ENOUGH_INFO SUPPORTS REFUTES
evidences.evidence_id: Climate change feedback:73
evidences.article: Climate change feedback
evidences.evidence: This releases more stored carbon into the atmosphere than the carbon cycle can naturally re-absorb, as well as reducing the overall forest area on the planet, creating a positive feedback loop.
evidences.votes: NOT_ENOUGH_INFO NOT_ENOUGH_INFO NOT_ENOUGH_INFO
evidences.evidence_id: Negative feedback:49
evidences.article: Negative feedback
evidences.evidence: In contrast, positive feedback is feedback in which the system responds so as to increase the magnitude of any particular perturbation, resulting in amplification of the original signal instead of stabilization.
evidences.votes: NOT_ENOUGH_INFO NOT_ENOUGH_INFO REFUTES
evidences.evidence_id: Positive feedback:1
evidences.article: Positive feedback
evidences.evidence: That is, the effects of a perturbation on a system include an increase in the magnitude of the perturbation.
evidences.votes: NOT_ENOUGH_INFO REFUTES NOT_ENOUGH_INFO