Urooj wants to say that the crux of the essay should be elaborated in introductive paragraph.indeed,introdution should be that much beautifull and attractive as the writer impressed and awarded good marks..

INTRODUTION GLOBAL WARMING

;Yesterday is impossible to recover but tomorrow is in our hand to win or lose;{lydon.B.Johnson.}.scientific advancement and technology have revolutionized every aspect of human life.with a click of button,information from the farthest corner of globe could be obtained with a fraction of second.distances traveled in years reduced to hours.the imagination of past is the reality of today.in fact,the advance world of today is able to predict the probable future realities of life.
Global warming and its effects as climate change are the growing concern of 6.5 billion people of this globe.reports and findings of leading enviromental scientists reveal the rise in temprature of the globe.besides,real life exprience of unprecedented change in weather phenomena makes one belive that global warming is reality.......

PLA CHECK THIS INTRODUCTION FOR GLOBAL WARMING..IS IT OK OR NEEDS MODOFICATION..?

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In politics... never retreat, never retract... never admit a mistake.