Infrastructure initiative relies on construction deals.
Support for anti-U.S. governments in South America has boosted China's influence, but also costly exposure to mismanagement and corruption.
Environmentalists call for blacklisting companies.
The official data contradicts claims of success.
A former aide to late, disgraced Chinese premier Zhao Ziyang shares his personal memories of Liu Xiaobo, and the optimism that surrounded the Charter 08 project.
Witnesses say Liu's intervention at Tiananmen Square in June 1989, likely helped hundreds escape being gunned down by soldiers.
A government plan calls for doubling pipeline deliveries next year.
Enforcement could mark a turning point for the country's environmental goals.