A Chinese investor monitors stock prices at a brokerage in Beijing on Wednesday. The country's stock markets have nosedived. Ng Han Guan/AP hide caption

itoggle caption Ng Han Guan/AP

Civilians hold rocks as they stand on a government armored vehicle near Chang'an Boulevard in Beijing, early June 4, 1989, before the army began a crackdown on pro-democracy protesters in and around Tiananmen Square. Jeff Widener/AP hide caption

itoggle caption Jeff Widener/AP

Years of rapid industrial expansion have left many parts of China contending with thick smog and dirty water. Vincent Yu/AP/DAPD hide caption

itoggle caption Vincent Yu/AP/DAPD

China said its politically sensitive inflation rate hit a 37-month high of 6.5 percent in July. Food costs, rose by 14.8 percent from a year ago, according to reports. Above, people shop for produce at a Beijing market Tuesday. Peter Parks/AFP/Getty Images hide caption

itoggle caption Peter Parks/AFP/Getty Images