write a short note on global warming.
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Global warming is that the long-term heating of Earth's climate system observed since the pre-industrial period (between 1850 and 1900) thanks to human activities, primarily fuel burning, which increases heat-trapping greenhouse emission levels in Earth's atmosphere.
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gloal warming nowadays becoming more common. this is usually caused due to the more CFC gases in the atmosphere layer. nowadays this can be mostly seen in Australia and this continent will be the most effective one among the others. this can be prevented by using the refrigerators for less span of time and using public transport
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