Chess in China 1998. Karpov's second visit took him to Beijing, Shenyang, Shanghai and Guangzhou – four of the five largest cities in China. He also took the opportunity to launch the Chinese edition of his book "Disney's Guide to Chess" and appeared to autograph his books at major bookstores in each city he visited. There were 20,000 copies for the first printing and more than half were sold within one week of his visit. Karpov played a total of five exhibitions and once again, the immense publicity raised the interest of chess to another level. At present, in terms of media publicity,
Environmental issues in China cumulative largest. China has ratified the Kyoto Protocol, but as a non-Annex I country is not required to limit greenhouse gas emissions under terms of the agreement. Various forms of pollution have increased as China have industrialized which has caused widespread environmental and health problems. China has responded with increasing environmental regulations and a build-up of pollutant treatment infrastructure which have caused improvements on some variables. As of 2013 Beijing, which lies in a topographic bowl, has significant industry, and heats with coal, is subject to air inversions resulting in extremely high levels of pollution in winter months. In response