Global Warming

          Global warming describes the average temperature of earth’s air and ocean. Global warming is often described as the most recent of climate change. Earth’s climate has changed many times.

          Human activities contribute to global warming by increasing a greenhouse effect. The greenhouse effect happens when certain gases (carbon dioxide, methane, CFCs, and nitrogen dioxide) collect in atmosphere. Greenhouse effect let the sun’s light shine on the earth’s surface, but they trap the heat that reflects back up into the atmosphere.

There are several ways to reduce greenhouse gases, like we can improve energy efficiency in home, we can improve the fuel efficiency of cars or motorcycle, and also use alternative energy sources, like solar power and biofuels (don’t involve burning fossil fuels).

As a human who lives in this earth, we should aware about the condition of our environment. If we do not want bad things happen to our earth because of global warming, we should cooperate with each other to reduce greenhouse effect.

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