U.S.-China talks advance cooperation on climate change.
Korean-American Mike Kim, author of 'Escaping North Korea: Defiance and Hope in the World's Most Repressive Country,' discusses how and why he put a career in finance on hold to help North Korean refugees in China.
U.S.-China ties test economic and security interests, experts say.
China's new offensive on Tibet may demand a different strategy in reply, writes Tibet scholar Warren Smith.
China cites progress in pollution reduction drive as experts urge greater efforts.
China has invested billions to lock up foreign oil during the global slump.
China's coal miners risk lives in outmoded industry, analysts say.