What happens when you go into a greenhouse on a sunny day? It`s hot isn’t it? That’s because the glass in the greenhouse traps the heat from the sun. This gas carbon dioxide does the same in the earth’s. The glass in the greenhouse keeps the plants inside warm, and the carbon dioxide and other greenhouse gases keep the planet warm.Without them,we’d freeze. Too much of them means that power station and so on, all this carbon gets oxygen we all breathe, and so adds to our greenhouse gas problem. And the planet warms more than it should.

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