If we hear the term Global Warming, it can’t be separated with the term greenhouse effect. Greenhouse effect is a phenomenon which is similar to the process of air circulation if we are in the closed car. Can you imagine if we are sitting in a car where there is no AC, the window is closing, and it is full of people. The room will be hot and it is hardly to breath.
Everyone breathes by inhaling oxygen (O2) and exhaling carbondioxide (CO2) into the air. If the room is closed, it means the O2 will be getting limited and the CO2 will hard to find the way out and finally just being trapped in the car.
Moreover, imagine if there is a smoking person, two smoking people, three smoking people or even more than that, what an awful! If you ask me, I will be totally disagree if somebody invites me to get in that car. It is very similar with the condition of our earth nowadays.
Our earth is covered by atmosphere, a kind of layer which is useful for protecting earth from any kinds of meteorite, overheat of the sun and to keep earth warms. But, as time goes by, the needs of human are getting higher and higher. The needs of energy like fossil fuel, trees, AC, electricity and much more have largely contributed in obstructing the heat out of the atmosphere. The heat is not able to get out, then makes the temperature of earth becomes hotter each day.
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