For example, what is the reason why greenhouse gases reflect heat from the Earth back to Earth, but not heat from the Sun back to the space?
From what I understand, it has something to do with radiation and emitted waves, but what exactly makes the difference?
In: Planetary Science
Check out this video.
Light/ energy from the sun enters as visible light which passes right through our atmosphere. It then mostly turns into infrared as it is absorbed by the earth/oceans. This infrared is trapped as it cannot pass through the atmosphere (video shows glass blocking infrared the same as our atmosphere does.
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