After i saw the movie 2012 i was shocked by destructive scenes presented in the movie.Will the end of the world truly coming in the future?I think it is the very time we should review the affects the human activities imposed on this planet.News about natural disasters (such as earthquake,tunami,hurricane,tornado,drought,storm etc) can be heard nearly everyday in recent years.All those deviant changes are possibly the aftermath of the climate change.Because of the consuming of large amount of coal,gas and oil,the earth has become warmer and warmer.So it is better for us to research new kind of energy resources which are low carbon.