Global warming- a real problem!

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This 21st century is turning out to be one of the nightmare for all of us.New technologies have been developed and also the resources have been used hapazardly.More vehicles and industries have produced more and more pollution by which it effects the ozone layer.Due to which the ultra voilet rays coming from the sun directly reaches to earth..temperature is increasing day by day..ice have started to melt and sea level have increased..what might be measures to control it?