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Global warming is the heating of the Earth due to greenhouse gases which cause greenhouse effect.
global warming is the rise in temperature of the Earth and the rise in sea level due to melting of ice caps North Pole and South Pole especially it is said that is the whole South Pole melts then the sea level is estimated to rise about 60 metres
Global warming is the heating of the earth due to greenhouse gases e.g carbon dioxide,methane that block the heat from escaping.By burning 'fossil fuels'-coal,oil and natural gas-we r putting 'greenhouse gases'into atmosphere.