claim: For example, we have a lower understanding of the effect of aerosols while we have a high understanding of the warming effect of carbon dioxide.
evidences.evidence_id: Carbon dioxide:190
evidences.article: Carbon dioxide
evidences.evidence: Absorption of infrared light at the vibrational frequencies of atmospheric carbon dioxide traps energy near the surface, warming the surface and the lower atmosphere.
evidences.votes: REFUTES SUPPORTS
evidences.evidence_id: Carbon dioxide:193
evidences.article: Carbon dioxide
evidences.evidence: Carbon dioxide is of greatest concern because it exerts a larger overall warming influence than all of these other gases combined and because it has a long atmospheric lifetime (hundreds to thousands of years).
evidences.votes: SUPPORTS SUPPORTS
evidences.evidence_id: Global cooling:61
evidences.article: Global cooling
evidences.evidence: The paper suggested that the global warming due to greenhouse gases would tend to have less effect with greater densities, and while aerosol pollution could cause warming, it was likely that it would tend to have a cooling effect which increased with density.
evidences.votes: REFUTES SUPPORTS
evidences.evidence_id: James Hansen:83
evidences.article: James Hansen
evidences.evidence: In 2000, Hansen advanced an alternative view of global warming over the last 100 years, arguing that during that time frame the negative forcing via aerosols and the positive forcing via carbon dioxide (CO 2) largely balanced each other out, and that the 0.74±0.18 °C net rise in average global temperatures could mostly be explained by greenhouse gases other than carbon dioxide, such as methane and chlorofluorocarbons.
evidences.votes: REFUTES REFUTES
evidences.evidence_id: James Hansen:90
evidences.article: James Hansen
evidences.evidence: He described this as a Faustian bargain because atmospheric aerosols had health risks, and should be reduced, but doing so would effectively increase the warming effects from CO 2.
evidences.votes: REFUTES SUPPORTS