It is reported that average globe temperature will rise approx. 0.6 degree C this century as the result of greenhouse effect which has been built up by human-made gases even if these gases are capped tomorrow. Director of NASA’s Goddard Institute for Space Studies at Columbia University’s Earth Institute also said that “ there can no longer be genuine doubt that human-made gases are the dominant cause of observed global warming. This energy imbalance is the smoking gun we have been looking for.”