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by puetzk
1123 days ago
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CO2 is opaque to many wavelengths ("colors") of infrared light. So when the surface would be cooling at night by radiating infrared light back to the darkness of space, CO2 blocks(and reabsorbs) this energy, warming the atmosphere. This effect is strongest in a band around 15μm wavelength. https://www.acs.org/climatescience/atmosphericwarming.html has a pretty good (though above ELI5) set of graphs and explanations of the chemistry involved. |
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