claim: Given that a doubling of carbon dioxide would change the surface heat flux by only two watts per square meter, it is evident that a small change in cloud cover can strongly affect the response to carbon dioxide."
evidences.evidence_id: Carbon dioxide in Earth's atmosphere:4
evidences.article: Carbon dioxide in Earth's atmosphere
evidences.evidence: CO 2 absorbs and emits infrared radiation at wavelengths of 4.26 µm (asymmetric stretching vibrational mode) and 14.99 µm (bending vibrational mode) and consequently is a greenhouse gas that plays a significant role in influencing Earth's surface temperature through the greenhouse effect.
evidences.votes: NOT_ENOUGH_INFO REFUTES
evidences.evidence_id: Global warming:107
evidences.article: Global warming
evidences.evidence: The main reinforcing feedbacks are the water vapour feedback, the ice–albedo feedback, and probably the net effect of clouds.
evidences.votes: SUPPORTS SUPPORTS
evidences.evidence_id: Global warming:116
evidences.article: Global warming
evidences.evidence: If cloud cover increases, more sunlight will be reflected back into space, cooling the planet.
evidences.votes: REFUTES SUPPORTS
evidences.evidence_id: Global warming:57
evidences.article: Global warming
evidences.evidence: While water vapour (~50%) and clouds (~25%) are the biggest contributors to the greenhouse effect, they increase as a function of temperature and are therefore considered feedbacks.
evidences.votes: SUPPORTS SUPPORTS
evidences.evidence_id: Radiative forcing:20
evidences.article: Radiative forcing
evidences.evidence: A typical value of λ, 0.8 K/(W/m2), gives an increase in global temperature of about 1.6 K above the 1750 reference temperature due to the increase in CO 2 over that time (278 to 405 ppm, for a forcing of 2.0 W/m2), and predicts a further warming of 1.4 K above present temperatures if the CO 2 mixing ratio in the atmosphere were to become double its pre-industrial value; both of these calculations assume no other forcings.
evidences.votes: NOT_ENOUGH_INFO SUPPORTS