The "Greenhouse Effect" in the Classroom: a low cost experiment to demonstrate the absorption of infrared radiation by greenhouse gases like carbon dioxide
DOI:
https://doi.org/10.5007/2175-7941.2020v37n2p849Abstract
Greenhouse effect and global warming are complex topics whose understanding requires mastery of various concepts and physical properties. The mechanism of the greenhouse effect is directly related to the role of greenhouse gases, like CO2, in absorbing infrared radiation emitted by the Earth and, thus, interfere in the Earth energy balance. In order to contribute to the discussion of the phenomenon of the greenhouse effect in the classroom, we assume that the use of experiments to demonstrate the absorption of infrared radiation by greenhouse gases presents strong educational potential. In this work we present a low cost and easy to perform classroom experiment to demonstrate the absorption of infrared radiation by the main non-condensable greenhouse gas of the Earth's atmosphere, carbon dioxide (CO2).
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