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Climate Change Evidence & Causes - dels.nas.edu
dels.nas.edu2 Climate ange GREENHOUSE GASES such as carbon dioxide (CO 2) absorb heat (infrared radiation) emitted from Earth’s surface. Increases in the atmospheric concentrations of these
INFRARED SPECTROSCOPY (IR)
utdallas.edu5 Infrared radiation is largely thermal energy. It induces stronger molecular vibrations in covalent bonds, which can be viewed as springs holding together two masses, or atoms. Graphics source: Wade, Jr., L.G. Organic Chemistry, 5th ed. Pearson Education Inc., 2003 Specific bonds respond to (absorb) specific frequencies VIBRATIONAL …