How to evaluate the city of Changsha?

Changsha's development in recent years, we have seen ****, gross social product and per capita GDP, in the list of cities in the central and western part of the ranking list, ranked second and first, respectively, science, education and culture leading. Just the city's sky azure blue less, the climate of winter and summer time occupies 80%, while spring and fall are like a flash in the pan, accounting for only about 20%. Overall, Changsha development potential there is still a lot of space.