Tag: infrared radiation
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Greenhouse gas
Greenhouse gas Greenhouse gases (GHG) are those gaseous constituents of the atmosphere, both natural and anthropogenic, that absorb and emit radiation at specific wavelengths within the spectrum of terrestrial radiation emitted by the Earth’s surface, the atmosphere itself and by clouds. Water vapor (H2O), carbon dioxide (CO2), nitrous oxide (N2O), methane (CH4) and ozone (O3)…
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Greenhouse effect
Greenhouse effect The greenhouse effect is a natural process that occurs when certain gases in the Earth’s atmosphere, known as greenhouse gases, trap heat from the sun. These gases allow sunlight to enter the atmosphere and reach the Earth’s surface. However, they also absorb and re-radiate infrared radiation emitted by the Earth, trapping heat in…