I can see it becoming a bigger and bigger problem for China as they get comparatively richer compared to their neighbours. No surprise really.

For those that have tried Chris' suggestion, crossing Linyu Lu at the moment is pretty easy - on the Western side of the river heading north, go down the steps leading to the river on the North side of the indoor badminton courts. Head north and you will get to a walled off end to the trail that stops just before the bridge. You can easily jump over the wall however and go UNDER the bridge. At the moment there isn't much water flowing down the river, this won't be possible soon if it rains more though.

Usually with this route I run up one side of the river and down the other. At some points there is construction on the east side of the river though which makes for dusty roads, so I swap to the already run side. You can easily do 10km with 90% along beautiful riverside footpaths with lots of trees if you live in the north!

I recommend people to upload their running routes on www.mapmyrun.com as well! Then we can all share the love! (I have about 4 uploaded on public setting, quite a few others from other runners in KM!)

The trick with running is actually to do it as much as you can on uneven ground.

Flat concrete is the worst. Concrete with lots of twists and turns is much better (imagine the nice tree areas along rivers) as you are using lots of different parts of your joints when you run around obstacles. Asphalt roads are better than concrete but road camber should be monitored - try to alternate 50/50.
Running tracks are good, they have curves and padded, but if you are running long distances on them you need to do the same number of laps in both directions or you can have problems.
Best is dirt/off road tracks, but you need to build up to them if you are new to them as you can easily twist an ankle if they aren't strong.

I have never heard jogging as being called "high risk". The risk to your health and premature death from avoiding exercise is much greater than the possible injuries from jogging. And as its one of the easiest, most accessible and best value exercises to get into, jogging is a very accessible exercise with incredible health benefits. Discouraging people by calling it "high risk" entertains the notion that people should be wrapped in bubble wrap their whole life fearful of everything.

I have been running both competitively and as a hobby for over 20 years having trained with and by professional runners and exercise physiologists. While I aren't an expert, I can definitely give experiential mixed with expert advice!

In Kunming, a great place to run now is along the rivers. The government has done a pretty good job of greening them and making long public spaces along them. If you live close to a river, explore!

Only if your styles off and usually by new people doing it for a short time. I have been running since I was 12 and according to a number of physios "you have some of the strongest knees/ankles I have ever seen!". Wear the right shoes, run on grass/running tracks/forest tracks most of the time and you will be fine.

Besides that, the definitive health benefits (cardiovascular, immune system, bones etc) far outweigh the possible drawbacks.