claim: Nor is there any evidence that levels as high as 7,000 ppm of CO2 did or could cause ocean acidity.
evidences.evidence_id: Carbon dioxide:216
evidences.article: Carbon dioxide
evidences.evidence: This has caused an increase in hydrogen ion (acidity) of about 30% since the start of the industrial age through a process known as "ocean acidification."
evidences.votes: REFUTES NOT_ENOUGH_INFO
evidences.evidence_id: Carbonic acid:22
evidences.article: Carbonic acid
evidences.evidence: It has been estimated that the extra dissolved carbon dioxide has caused the ocean's average surface pH to shift by about −0.1 unit from pre-industrial levels.
evidences.votes: SUPPORTS NOT_ENOUGH_INFO
evidences.evidence_id: Global warming:153
evidences.article: Global warming
evidences.evidence: Higher atmospheric CO2 concentrations have led to an increase in dissolved CO2, which causes ocean acidification.
evidences.votes: REFUTES SUPPORTS
evidences.evidence_id: PH:138
evidences.article: PH
evidences.evidence: It plays an important role in the ocean's carbon cycle, and there is evidence of ongoing ocean acidification caused by carbon dioxide emissions.
evidences.votes: REFUTES NOT_ENOUGH_INFO
evidences.evidence_id: Snowball Earth:104
evidences.article: Snowball Earth
evidences.evidence: Firstly, the high carbon dioxide concentration in the atmosphere would cause the oceans to become acidic, and dissolve any carbonates contained within—starkly at odds with the deposition of cap carbonates.
evidences.votes: REFUTES SUPPORTS