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What does 'till the earth's surface has no long wave radiation to emit mean, in the Environmental Issues Chapter?
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Asked by sumayiah2000 | 26 Mar, 2020, 01:24: AM
answered-by-expert Expert Answer
Water vapor, carbon dioxide, methane, and other trace gases in Earth's atmosphere absorb the longer wavelengths of outgoing infrared radiation from Earth's surface. These gases then emit the infrared radiation in all directions, both outward toward space and downward toward Earth. This process creates a second source of radiation to warm to surface – visible radiation from the sun and infrared radiation from the atmosphere – which causes Earth to be warmer than it otherwise would have been. This process is known as the natural greenhouse effect and keeps Earth's average global temperature at approximately 15°C.
Answered by Sheetal Kolte | 26 Mar, 2020, 11:46: AM

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