claim: CO2 limits won't cool the planet, but they can make the difference between continued accelerating global warming to catastrophic levels vs. slowing and eventually stopping the warming at hopefully safe levels.
evidences.evidence_id: Climate change mitigation:355
evidences.article: Climate change mitigation
evidences.evidence: One of the targets that has been suggested is to limit the future increase in global mean temperature (global warming) to below 2 °C, relative to the pre-industrial level.
evidences.votes: REFUTES SUPPORTS
evidences.evidence_id: Planetary boundaries:16
evidences.article: Planetary boundaries
evidences.evidence: The scientists raise the possibility that even if greenhouse gas emissions are substantially reduced to limit warming to 2 degrees, that might be the "threshold" at which self-reinforcing climate feedbacks add additional warming until the climate system stabilizes in a hothouse climate state.
evidences.votes: NOT_ENOUGH_INFO SUPPORTS
evidences.evidence_id: Planetary boundaries:61
evidences.article: Planetary boundaries
evidences.evidence: Thresholds and boundaries The threshold, or tipping point, is the value at which a very small increment for the control variable (like CO2) triggers a larger, possibly catastrophic, change in the response variable (global warming) through feedbacks in the natural Earth System itself.
evidences.votes: SUPPORTS SUPPORTS
evidences.evidence_id: Scientific consensus on climate change:23
evidences.article: Scientific consensus on climate change
evidences.evidence: The current trajectory of global greenhouse gas emissions is not consistent with limiting global warming to below 1.5 or 2 °C, relative to pre-industrial levels.
evidences.votes: NOT_ENOUGH_INFO SUPPORTS
evidences.evidence_id: Tipping points in the climate system:90
evidences.article: Tipping points in the climate system
evidences.evidence: Humans cannot survive if the air is too moist and hot, which would happen for the majority of human populations if global temperatures rise by 11–12 °C, as land masses warm faster than the global average.
evidences.votes: NOT_ENOUGH_INFO NOT_ENOUGH_INFO