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The
greenhouse effect is one of the phenomena caused by industrial pollution. From
the data taken by scientists, our earth has been warming up since the Industrial
Revolution. Why does it happen? The factories' emissions have created smog on
the atmosphere. The earth's atmosphere becomes like a green house, and the earth
and everything inside of it have become like the plants in the greenhouse. The
sunlight can pass through the ozone layer but the heat transferred by the sunlight
can not escape easily from the layer of smog and is deflected to the
earth's surface again.
