In recent years, there have been many alarming reports that the world's climate is undergoing a significant change . all these reports provide strong evidence that world temperature are increasing day by day.this increase in global warming is caused by increased amount of carbon dioxide around the earth.
climatologists predict that midway through the next century , temperatures may have risen by as much as 4 degree .
the alarming news about the world , rise of the sea level, many coastal area may go down under the sea.
All people world must be aware about that.