Global warming is the a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, CFCs, and other pollutants and its effects like rising sea levels due to thermal expansion and melting of glaciers and ice sheets, and warming of the ocean surface, leading to increased temperature stratification.
the uneven increase of the temperature in earth's surface because of green house gases such as carbon dioxide,carbon monoxide,oxides of nitrogen etc.
global warming effects:
1.melting of ice bergs,ice caps
2.increase in sea level
3.increase in rainfall pattern
4.change in climate which will be not suitable for living
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