There is no blinking the fact that the vast amount of man-made gases are building up a layer, like a blanket high above the earth. This is preventing the heat from escaping into space as a result, the temperature of the world is rising rapidly.
This is very serious indeed, because it will change the all patterns of the weather. The scientists think that the earth will become much warmer and drier which for Pakistan is already on the borderline and it could be very serious.
It also means that much of the polar ice will melt. It is already retreating several kilometers a year and that sea levels will rise. This will seriously affect low-lying countries such as Bangladesh, Pakistan, Maldives and many others. Thus, we have to grow as many trees as we can.