Beautiful sky with clean air in Tibet[Photo/Xiinhua]

According to the forecase, Beijing and some parts of China will have smog in the next five days. In contrast to the smoggy sky in Bejing, Tibet enjoys a clear sky with clean air.

It is reported that by now Tibet remains one of the areas with the best environment in the world. Tibet's water, air and ecology are the best in quality in China thanks to the continued protection measures taken over the years.

The Lalu Wetland in Lhasa, Tibet[Photo/Xinhua]

Tibet has become the largest breeding ground and area to spend winter for black-necked cranes, the first-class animal under state protection.[Photo/Xinhua]