Global warming

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Global warming is the increase in the average temperature of the Earth. It is caused by an increase of the greenhouse effect. Greenhouse gases such as carbon dioxide and methane in the atmosphere trap some of the heat radiated away from the Earth, this is known as the greenhouse effect. The greenhouse effect is essential for the existence of life on Earth, but an increase in this effect results in climate change which causes adverse effects such as an increase in sea level due to the melting of glaciers; and an increase in certain diseases.

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