Well, seeing is believing, you know. But of course, I DO NOT deny global warming. The effect is not very obvious till recent years. Actually, there is an increasing number of people believing the effect of global warming and the disasters that will be brought about in tens of years. Old people won't witness that day, neither do mid-aged people. When today's young ones become mid-aged, they will pay the price.

Reduce emission of greenhouse gases is indeed important, especially for America. A longer term method is certainly to develop renewable energy sources. If we can ever develop nuclear fusion successfully, Earth will be saved as the only product of nuclear fusion is helium, a harmless inert gas. I'm looking forward to seeing the day when power plants no longer emit sooty smoke but white steam only.