claim: When CO2 levels were higher in the past, solar levels were also lower.
evidences.evidence_id: Anoxic event:86
evidences.article: Anoxic event
evidences.evidence: These anoxic periods occurred at a time of low global temperatures (although CO 2 levels were high), in the midst of a glaciation.
evidences.votes: SUPPORTS NOT_ENOUGH_INFO
evidences.evidence_id: Global warming:63
evidences.article: Global warming
evidences.evidence: Less direct geological evidence indicates that CO2 values have not been this high for millions of years.
evidences.votes: REFUTES REFUTES
evidences.evidence_id: Greenhouse gas:115
evidences.article: Greenhouse gas
evidences.evidence: For example, the mole fraction of carbon dioxide has increased from 280 ppm to 415 ppm, or 120 ppm over modern pre-industrial levels.
evidences.votes: REFUTES REFUTES
evidences.evidence_id: Greenhouse gas:127
evidences.article: Greenhouse gas
evidences.evidence: Measured atmospheric concentrations of carbon dioxide are currently 100 ppm higher than pre-industrial levels.
evidences.votes: REFUTES REFUTES
evidences.evidence_id: Ice age:215
evidences.article: Ice age
evidences.evidence: At times during the paleoclimate, carbon dioxide levels were two or three times greater than today.
evidences.votes: SUPPORTS SUPPORTS