When you think about some of the most pressing issues the world is facing, global warming and pollution definitely come to mind. With the ever increasing number of cars, trucks, motorbikes and whatnot that still run on fossil fuels, our environment isn’t getting healthier, specially in some of the larger cities. In fact, a few cities have gotten so polluted by exhaust fumes and the like that stars in the night sky aren’t visible properly. Speaking of which, Beijing is considered one of the most polluted cities in the world. It is often covered in dense smog caused by industrial and automobile exhaust smoke, to the extent that citizens are asked to wear face masks. If that’s doesn’t sound bad enough, there are large television screens around the city that show a virtual sunrise at appropriate times because the natural sunrise isn’t visible through the smog!

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