claim: The Schmittner et al. study finds low probability of both very low and very high climate sensitivities, and its lower estimate (as compared to the IPCC) is based on a new temperature reconstruction of the Last Glacial Maximum that may or may not withstand the test of time.
evidences.evidence_id: Climate change feedback:83
evidences.article: Climate change feedback
evidences.evidence: This is the "likely" range (greater than 66% probability), based on the expert judgement of the IPCC's authors.
evidences.votes: NOT_ENOUGH_INFO NOT_ENOUGH_INFO NOT_ENOUGH_INFO
evidences.evidence_id: Climate sensitivity:58
evidences.article: Climate sensitivity
evidences.evidence: For constant humidity they computed a climate sensitivity of 2.3 °C per doubling of CO2 (which they rounded to 2, the value most often quoted from their work, in the abstract of the paper).
evidences.votes: NOT_ENOUGH_INFO NOT_ENOUGH_INFO NOT_ENOUGH_INFO
evidences.evidence_id: Climate sensitivity:74
evidences.article: Climate sensitivity
evidences.evidence: The IPCC Fifth Assessment Report reverted to the earlier range of 1.5 to 4.5 °C (2.7 to 8.1 °F) (high confidence) because some estimates using industrial-age data came out low.
evidences.votes: NOT_ENOUGH_INFO NOT_ENOUGH_INFO NOT_ENOUGH_INFO
evidences.evidence_id: IPCC Fifth Assessment Report:69
evidences.article: IPCC Fifth Assessment Report
evidences.evidence: Compared to the previous report, the lower bounds for the sensitivity of the climate system to emissions were slightly lowered, though the projections for global mean temperature rise (compared to pre-industrial levels) by 2100 exceeded 1.5 °C in all scenarios.
evidences.votes: SUPPORTS NOT_ENOUGH_INFO NOT_ENOUGH_INFO
evidences.evidence_id: Kyoto Protocol:22
evidences.article: Kyoto Protocol
evidences.evidence: The Intergovernmental Panel on Climate Change (IPCC, 2007) have produced a range of projections of what the future increase in global mean temperature might be.
evidences.votes: SUPPORTS NOT_ENOUGH_INFO NOT_ENOUGH_INFO