Global warming means the rising of temperature in an average on the surface of the earth. It has affected the environment and whole atmosphere and has resulted into the huge level climate change. There are many reasons behind this increasing global warming. The main reason of global warming is the huge amount of carbon resulting from environmental pollution. Again the destruction of forests adds to this problem. The growth of industries, increasing number of vehicles and the use of CFCs in manufacturing and packaging industries are also the causes of the rice temperature in the atmosphere. This increase in the world’s temperature has some fatal consequences on humans, animals, and plants. The increased amount of heat will melt the huge ice of the polar ice-caps and thereby, the sea level will rise. Then the salty water of the sea will mix with the river water and will come into the farmlands. Then the fertility of the lands will be lost and man’s ability to grow crops will be reduced. Furthermore, the lower regions of the world including the coastal areas of Bangladesh will go under water. Again, if the temperature rises continuously, many of the species of animals will become extinct forever. So, effective measures must be taken to prevent global warming. Planting more trees and expansion of forestation programmers can go a long way to tackle the situation. Using environment-friendly machines and avoiding the use of CFCs can also reduce the amount of carbon dioxide in the atmosphere. By taking all these steps, we can prevent global warming to make our life danger-free and lead a happy life.