mikeparker:

Hi, are you coming to Jining for work or for leisure?

DrMonkey:

From the Wikipedia entry for Jining
Jining is also called the "city of sinkholes". Due to excessive coal mining, large parts of the city have been abandoned. Three thousand farmers were displaced. People who built new houses found cracks after mere months and had to leave. The Jining Land Resource Bureau predicts that by 2090, one third of the city – an area as large as Los Angeles – will fall into the earth, and an estimated 5 million people will have been forced out of the region by the problem. Some people remember when – 30 years ago – Jining was a mere village, with no train stations or shopping malls. Now, they fear, it is too late for the city to pull out of the coal business.

sorrel:

good luck with your China adventure

I hope you are well prepared