1- Radiation from the sun enters the earth's atmospher and reaches it.
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What is the second stage of global warming?
2- The radiation warms up the earth's surface.
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What is the third stage of global warming?
3- The earth's surface radiates heat energy. Some of this heat energy goes directly into space. Some is absorbed by carbon dioxide gas in the atmosphere
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What is the fourth stage of global warming?
4- The atmosphere radiates some of its heat back towards the earth so earths atmosphere gets hotter.
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