· The sun shines on the earth and some of the rays stay in the earth’s atmosphere to keep the earth at just the right temperature and some of the rays bounce back into space.
· Global warming happens when greenhouse gases are made and not as many rays are able to escape from the atmosphere so the atmosphere warms up.
· The earth’s atmosphere is like a blanket. When there are too many greenhouse gases, it's like the blanket gets thicker and so the earth gets warmer
Greenhouse gases are named after greenhouses because they make the atmosphere warm up just like a greenhouse keeps plants warmer than they would be in the air outside.
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| This diagram shows how global warming works. |
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