Congrats. This is probably the best article that I have read on the subject. The status quo cannot provide any form of a win for all of the Korean people, the Chinese people or for any country in the region and there is a need for China to to take the lead in finding a long term solution.to a situation, without which there will be a disaster. 
Kim is clearly deranged and he is endangering world peace and also is endangering the lives of millions of Chinese citizens who (through geographic proximity) would be impacted by any form of nuclear action. 
China needs to act with the support of the western powers and with that of the other countries in the region. This is a great opportunity for China to prove that they are a responsible power.