From Xinhua News Agency (link):
Leading Chinese producers and directors are supporting a “green production code” and would make every effort to protect the environment during filming.
The initiative was put forward Thursday after media reports and government officials criticized producers of “The Promise” over damage caused during filming.
“China’s beautiful scenery must be preserved on film and in reality,” says the initiative, which calls on producers to exercise self-discipline and government departments, news organizations and environmental groups to enhance supervision.