claim: The CERN CLOUD experiment only tested one-third of one out of four requirements necessary to blame global warming on cosmic rays, and two of the other requirements have already failed.
evidences.evidence_id: Attribution of recent climate change:240
evidences.article: Attribution of recent climate change
evidences.evidence: (2009): The CLOUD experiments at CERN are interesting research but do not provide conclusive evidence that cosmic rays can serve as a major source of cloud seeding.
evidences.votes: SUPPORTS SUPPORTS
evidences.evidence_id: CLOUD experiment:29
evidences.article: CLOUD experiment
evidences.evidence: This result does not support the hypothesis that cosmic rays significantly affect climate, although a CERN press release states that neither does it "rule out a role for cosmic radiation" in climate.
evidences.votes: SUPPORTS SUPPORTS
evidences.evidence_id: CLOUD experiment:3
evidences.article: CLOUD experiment
evidences.evidence: Although its design is optimised to address the cosmic ray question, (as posed by Henrik Svensmark and colleagues in 1997) CLOUD allows as well to measure aerosol nucleation and growth under controlled laboratory conditions.
evidences.votes: REFUTES SUPPORTS
evidences.evidence_id: CLOUD experiment:34
evidences.article: CLOUD experiment
evidences.evidence: Although they observe that a fraction of cloud nuclei is effectively produced by ionisation due to the interaction of cosmic rays with the constituents of Earth atmosphere, this process is insufficient to attribute all of the present climate modifications to the fluctuations of the cosmic rays intensity modulated by changes in the solar activity and Earth magnetosphere.
evidences.votes: REFUTES SUPPORTS
evidences.evidence_id: Climate change (general concept):116
evidences.article: Climate change (general concept)
evidences.evidence: To test the hypothesis, CERN designed the CLOUD experiment, which showed the effect of cosmic rays is too weak to influence climate noticeably.
evidences.votes: REFUTES SUPPORTS