Global warming refers nothing but the climate changes that causes an increase in average temperature of the environment. For the last period of a few decades the average temperature of all the areas of the world has been increasing at a very fast rate. Scientists have shown that the average temperature of the world has already increased by around 2 degree Celsius during the past period of around five decades.

The increasing temperature has helped melting more snow in cold area and. As a result the average water level of the oceans and sea has increased rapidly day to day. Again the increased water level has already flooded several island area of the world. People who were living in those islands had to shift themselves in a safe area or foreign countries for endurance.

Scientists associated with several developed countries specially Britain and USA have warned that the threat of increasing trend of global temperature could be more dangerous than global terrorism. So the scientists called to take some radical steps, so that the trend of increase in global temperature could be minimized.

The scientists place their opinion that highly release of carbon dioxide and several other gases in the atmosphere was highly responsible for the increase of global temperature. It was pointed out by the scientists that during the past few years there were high incidents of natural disasters around the world which were the mainly caused of increase of global temperature. So, the scientists called the global communities to take various corrective steps to improve the situation.