After a long departure from the homeland, a shoal of fish founded in the torrent which signals that the river recovers to vitality. It was very stinky without clean water. Now it comes to be normal as same as what it was before it was badly polluted. 

The awareness of environment protection has somehow alerted people’s caution about the living condition. Many of land and waters face the problem of pollution in varying degree. Air quality also meets the severe issue largely influences everyone’s respiratory system and other related organs. It was rare to hear of some guys got caner decades ago; now this disease is a commonplace. Every year the morbidity of tumor has kept the increasing rate, with a huge number of patients suffer from the malignant tumor in kinds of forms. 

A vivid metaphor “Getting a cancer just like catching a cold”, used to describe the trend of current situation of our living condition. Though there are many factors of disease triggering, such as sedentary office working, staying up in late night and little time on physical exercises, it obviously has a stronger connection to diseases in terms of bad environment. Particularly, those places where are highly contaminated, residents are more likely to be sick on account of exposure to polluted air, water and food. 

It is now becoming an extraordinarily luxurious grace to admire bright starts and moon in a clear and tranquil night. The time of numbering stars somehow has sealed into memory as the best gift to recall. Even there is blue sky it could be just a temporary phenomenon. APEC Blue was once to depict the period when the meeting APEC held in Beijing brought people a pure blue sky which is hard to meet that kind of scene. 

Just hope it will be improved better and more rivers welcome fish back.