Actor Du Jiang attends a news conference to promote the movie "Di jiu tian chang" (So Long, My Son) at the 69th Berlinale International Film Festival in Berlin, Germany, February 14, 2019. REUTERS/Fabrizio Bensch

Actor Du Jiang poses during a photocall to promote the movie "Di jiu tian chang" (So Long, My Son) at the 69th Berlinale International Film Festival in Berlin, Germany, February 14, 2019. REUTERS/Fabrizio Bensch

Actor Du Jiang poses during a photocall to promote the movie "Di jiu tian chang" (So Long, My Son) at the 69th Berlinale International Film Festival in Berlin, Germany, February 14, 2019. REUTERS/Fabrizio Bensch

Director, screenwriter and producer Wang Xiaoshuai and actors Du Jiang, Qi Xi and Wang Yuan pose during a photocall to promote the movie "Di jiu tian chang" (So Long, My Son) at the 69th Berlinale International Film Festival in Berlin, Germany, February 14, 2019. REUTERS/Fabrizio Bensch

71st Cannes Film Festival - Screening of the film "Ash Is Purest White" (Jiang hu er nv) in competition - Red Carpet Arrivals - Cannes, France, May 11, 2018 - jury member Chang Chen arrives. REUTERS/Eric Gaillard

71st Cannes Film Festival - Screening of the film "Ash Is Purest White" (Jiang hu er nv) in competition - Red Carpet Arrivals - Cannes, France, May 11, 2018. Chang Chen, member of the 71st Cannes Film Festival Jury, poses. REUTERS/Stephane Mahe

71st Cannes Film Festival - Screening of the film "Ash Is Purest White" (Jiang hu er nv) in competition - Red Carpet Arrivals - Cannes, France, May 11, 2018 - jury member Chang Chen arrives. REUTERS/Eric Gaillard

Mark Lee Ping-Bing poses with the Silver Bear award for Outstanding Artistic Contribution for the cinematography in 'Chang Jiang Tu' ('Crosscurrent') during the awards ceremony of the 66th Berlinale International Film Festival in Berlin, Germany February 20, 2016. REUTERS/Bernd von Jutrczenka/Pool

Mark Lee Ping-Bing poses with the Silver Bear award for Outstanding Artistic Contribution for the cinematography in 'Chang Jiang Tu' ('Crosscurrent') during the awards ceremony of the 66th Berlinale International Film Festival in Berlin, Germany February 20, 2016. REUTERS/Bernd von Jutrczenka/Pool

Mark Lee Ping-Bing receives the Silver Bear award for Outstanding Artistic Contribution for the cinematography in 'Chang Jiang Tu' ('Crosscurrent') during the awards ceremony at the 66th Berlinale International Film Festival in Berlin, Germany, February 20, 2016. REUTERS/Fabrizio Bensch

Mark Lee Ping-Bing receives the Silver Bear award for Outstanding Artistic Contribution for the cinematography in 'Chang Jiang Tu' ('Crosscurrent') during the awards ceremony at the 66th Berlinale International Film Festival in Berlin, Germany, February 20, 2016. REUTERS/Fabrizio Bensch

Actress Xin Zhi Lei attends a news conference to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actress Xin Zhi Lei poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actress Xin Zhi Lei poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actress Xin Zhi Lei poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actress Xin Zhi Lei poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actress Xin Zhi Lei poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actress Xin Zhi Lei poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actress Xin Zhi Lei poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actress Xin Zhi Lei attends a news conference to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actor Tan Kai poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actor Wu Lipeng poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actor Wu Lipeng poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actor Wu Lipeng poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actor Qin Hao poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Director Yang Chao poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actress Xin Zhi Lei poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actress Xin Zhi Lei poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actress Xin Zhi Lei poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actress Xin Zhi Lei poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actress Xin Zhi Lei poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Actress Xin Zhi Lei poses during a photocall to promote the movie 'Chang Jiang Tu' (Crosscurrent) at the 66th Berlinale International Film Festival in Berlin, Germany, February 15, 2016. REUTERS/Hannibal Hanschke

Jiang Weimao, 60, (L) and his wife Zhang Yinxiu, 53, (R), stand with Zhang's parents between them, as they pose with their dead son's picture at their house in Zhangjiakou, China, November 21, 2015. Jiang and Zhang's son, Jiang Tingyi, was born in 1984 and died of diabetes in 2010. They recall the propaganda slogan in the 1980s: "Only having one child is good, the state will take care of the elderly." They both worked in the same glass factory and didn't think of having a second baby for fear of losing their job. Zhang had an abortion after falling pregnant a second time. Now retired, they live with Zhang's parents on the outskirts of Zhangjiakou city. Their son's struggles with diabetes left them in heavy debt. Now they live on a pension but it's not enough to cover the family's medical bills. The change in the one-child policy has nothing to do with them and has only deepened their sorrow after the loss of their only child, Zhang said. REUTERS/Kim Kyung-Hoon PICTURE 7 OF 18 FOR WIDER IMAGE STORY "CHINA: WHEN AN ONLY CHILD DIES" SEARCH "KIM ONE CHILD" FOR ALL IMAGES

Jiang Weimao, 60, (R) and his wife Zhang Yinxiu, 53, have dinner with Zhang's parents at their house in Zhangjiakou, China, November 21, 2015. Jiang and Zhang's son, Jiang Tingyi, was born in 1984 and died of diabetes in 2010. They recall the propaganda slogan in the 1980s: "Only having one child is good, the state will take care of the elderly." They both worked in the same glass factory and didn't think of having a second baby for fear of losing their job. She had an abortion after falling pregnant a second time. Now retired, they live with Zhang’s parents on the outskirts of Zhangjiakou city. Their son's struggles with diabetes left them in heavy debt. Now they live on a pension but it's not enough to cover the family’s medical bills. The change in the one-child policy has nothing to do with them and has only deepened their sorrow after the loss of their only child, Zhang said. REUTERS/Kim Kyung-Hoon PICTURE 9 OF 18 FOR WIDER IMAGE STORY "CHINA: WHEN AN ONLY CHILD DIES" SEARCH "KIM ONE CHILD" FOR ALL IMAGES

Jiang Weimao, 60, and his wife Zhang Yinxiu, 53, show a picture of their dead son as a baby and his "honourable single child certification" at their house in in Zhangjiakou, China, November 21, 2015. Jiang and Zhang's son, Jiang Tingyi, was born in 1984 and died of diabetes in 2010. They recall the propaganda slogan in the 1980s: "Only having one child is good, the state will take care of the elderly." They both worked in the same glass factory and didn't think of having a second baby for fear of losing their job. Zhang had an abortion after falling pregnant a second time. Now retired, they live with Zhang's parents on the outskirts of Zhangjiakou city. The son's struggles with diabetes left them in heavy debt. Now they live on a pension but it's not enough to cover the family's medical bills. Zhang said the change of the one-child policy has nothing to do with them and has only deepened their sorrow caused by the loss of their only child. REUTERS/Kim Kyung-Hoon PICTURE 8 OF 18 FOR WIDER IMAGE STORY "CHINA: WHEN AN ONLY CHILD DIES" SEARCH "KIM ONE CHILD" FOR ALL IMAGES

A rescue worker throws a flower at a ceremony to mark the seventh day after the incident of the Eastern Star ship which capsized in the Jianli section of Yangtze River, Hubei province, China, June 7, 2015.
REUTERS/Kim Kyung-Hoon
TPX IMAGES OF THE DAY

Rescue workers rest near the site where the cruise ship Eastern Star capsized during a media trip to the site of the sinking, organised by the Chinese government, in the Jianli section of Yangtze River, Hubei province China, June 5, 2015. An irate relative of two passengers missing aboard a Chinese cruise ship which capsized on the Yangtze River publicly accused the government of treating its people like enemies, as officials struggled to contain public anger over the disaster. Only 14 survivors, one of them the captain, have been found after the ship carrying 456 overturned in a freak tornado on Monday night. A total of 103 bodies have been found.
REUTERS/Aly Song

Relatives of a missing passenger aboard a capsized ship cry on the banks of the Jianli section of Yangtze River in Hubei province, China, June 4, 2015. Hundreds of relatives of passengers from a Chinese cruise ship that foundered on the Yangtze River gathered in a public square in Jianli on Thursday clutching candles and flowers, as rescue officials began the arduous task of righting the vessel. The transport ministry said the operation to start righting the ship, which overturned during a freak tornado, would start at 8 p.m. (1200 GMT) on Thursday. REUTERS/Aly Song TPX IMAGES OF THE DAY

A relative of a passenger of the sunken cruise ship cries on a road to the site of the sinking in the Jianli section of Yangtze River, Hubei province, China, June 3, 2015. More than 200 divers combed a capsized Chinese ship in the Yangtze River on Wednesday looking for more than 400 missing people, many of them elderly Chinese tourists, as Premier Li Keqiang called for a transparent investigation. REUTERS/Kim Kyung-Hoon

Paramilitary soldiers walk during their rescue work near the site of a capsized ship at the Jianli section of Yangtze River in Hubei province, China, June 3, 2015. Scores of divers searched the capsized ship in the Yangtze River on Wednesday for more than 400 missing people, many of them elderly tourists, as the death toll in what could be China's worst shipping disaster in almost 70 years doubled to 14. REUTERS/Aly Song

Rescue workers are seen atop a sunken ship in the Jianli section of Yangtze River, Hubei province, China, June 2, 2015. Rescuers fought bad weather on Tuesday as they searched for more than 400 people, many of them elderly Chinese tourists, missing after a cruise boat was buffeted by a freak tornado and capsized on the Yangtze River. REUTERS/Kim Kyung-Hoon

ATTENTION EDITORS - VISUAL COVERAGE OF SCENES OF DEATH

Rescue workers carry a body from the sunken ship in the Jianli section of Yangtze River, Hubei province, China, June 2, 2015. Rescuers fought bad weather on Tuesday as they searched for more than 400 people, many of them elderly Chinese tourists, missing after a cruise boat was buffeted by a freak tornado and capsized on the Yangtze River. REUTERS/Aly Song

Rescue ships and workers are seen around a sunken ship in the Jianli section of Yangtze River, Hubei province, China, June 2, 2015. Rescuers fought bad weather on Tuesday as they searched for more than 400 people, many of them elderly Chinese tourists, missing after a cruise boat was buffeted by a freak tornado and capsized on the Yangtze River.
REUTERS/Kim Kyung-Hoon

ATTENTION EDITORS - VISUAL COVERAGE OF SCENES OF DEATH

Rescue workers carry a body from a sunken ship in the Jianli section of Yangtze River, Hubei province, China, June 2, 2015. Rescuers fought bad weather on Tuesday as they searched for more than 400 people, many of them elderly Chinese tourists, missing after a ship capsized on the Yangtze River in what was likely China's worst shipping disaster in almost 70 years.
REUTERS/Kim Kyung-Hoon

Relatives of a missing person scuffle with police officers on the bank of the Yangtze River, near Jingjiang, Jiangsu province January 17, 2015. A search and rescue operation was still under way after the boat capsized on January 15, leaving 22 people missing, including foreigners. REUTERS/Aly Song (CHINA - Tags: DISASTER TRANSPORT MARITIME TPX IMAGES OF THE DAY)

A policeman watches as a sunken tug boat is lifted from the Yangtze River by a rescue team near Jingjiang, Jiangsu province, January 16, 2015. More than 20 people are missing after the tug boat sank in the river on Thursday, the state-run Xinhua news agency reported on Friday quoting local authorities. REUTERS/ Aly Song (CHINA - Tags: DISASTER MARITIME TRANSPORT)

Visitors Zhai Jian Ging (L) and professor Jiang Tong of China tour the Antisana Ecological Reserve January 29, 2014. The paramo ecosystem encompasses a wide water system, and is home to the largest population of the rare Andean condor in Ecuador. Private and governmental groups protect the habitat, which is being threatened in recent years by both urbanization and climate change, according to local media. REUTERS/Guillermo Granja (ECUADOR - Tags: SOCIETY ENVIRONMENT)

China's President Hu Jintao and former President Jiang Zemin shake hands as China's Premier Wen Jiabao holds his ballot folder after the closing session of the 18th National Congress of the Communist Party of China at the Great Hall of the People in Beijing, November 14, 2012. China's Communist Party congress offered the first clues on a generational leadership change on Wednesday as Xi Jinping and Li Keqiang took the first step to the presidency and premiership, respectively. The 2,270 carefully vetted delegates cast their votes behind closed doors in Beijing's cavernous Great Hall of the People for the new Central Committee, a ruling council with around 200 full members and 170 or so alternate members with no voting rights. REUTERS/Jason Lee (CHINA - Tags: POLITICS)

(Front row, L to R) China's President Hu Jintao, China's former President Jiang Zemin, China's Premier Wen Jiabao, Standing Committee of the Political Bureau member Li Changchun and China's Vice-Premier Li Keqiang raise their hands as they take a vote at the closing session of the 18th National Congress of the Communist Party of China, at the Great Hall of the People in Beijing, November 14, 2012. China's Communist Party congress offered the first clues on a generational leadership change on Wednesday as Xi Jinping and Li Keqiang took the first step to the presidency and premiership, respectively. The 2,270 carefully vetted delegates cast their votes behind closed doors in Beijing's cavernous Great Hall of the People for the new Central Committee, a ruling council with around 200 full members and 170 or so alternate members with no voting rights. REUTERS/Jason Lee (CHINA - Tags: POLITICS TPX IMAGES OF THE DAY)

China's Vice President Xi Jinping walks behind as China's outgoing President Hu Jintao (L) talks with former President Jiang Zemin at the beginning of the opening ceremony of 18th National Congress of the Communist Party of China at the Great Hall of the People in Beijing, November 8, 2012. Hu promised political reform on Thursday, saying the nation faced risk and opportunity in equal measure as he formally opened a congress of the ruling Communist Party that will usher in a once-in-a-decade leadership change. During the congress, Hu will give up his role as party chief to anointed successor Vice President Xi Jinping. Xi then takes over state duties at the annual meeting of parliament in March. REUTERS/Jason Lee (CHINA - Tags: POLITICS)

Chinese President Hu Jintao (L) talks to Chinese former President Jiang Zemin at the beginning of the opening ceremony of 18th National Congress of the Communist Party of China at the Great Hall of the People in Beijing, November 8, 2012. China's outgoing President Hu said the nation faced risk and opportunity in equal measure as he formally opened a congress of the ruling Communist Party that will usher in a once-in-a-decade leadership change. REUTERS/Jason Lee (CHINA - Tags: POLITICS)

A flock of geese swim in a branch of Yangtze river in Dongtu county, Anhui province, in this aerial view taken October 9, 2012. Picture taken October 9. REUTERS/Stringer (CHINA - Tags: ENVIRONMENT ANIMALS TPX IMAGES OF THE DAY)

Ships sail on the Yangtze River near Badong, 100km (62 miles) from the Three Gorges dam in Hubei province August 7, 2012. The environmental problems associated with the Three Gorges dam illustrate China's energy dilemma: To move away from its reliance on coal-fired power plants, Beijing says it has to develop cleaner forms of power. Hydropower is the most cost-effective way China can meet its energy needs, but its problems are still unfolding. China built the dam to tame flooding on the Yangtze, improve shipping and produce pollutant-free power. The dam has a total capacity of 22.5 GW, equivalent to burning 50 million tonnes of coal, according to the Three Gorges' Project State Assessment Report. The dam cost China more than $50 billion and displaced 1.4 million people while another 100,000 people may be moved from Hubei and the southwestern municipality of Chongqing in the next three to five years due to geological risks an official said in April. The number of geological disasters has risen 70 percent since the reservoir reached its maximum height of 175 metres, he said. Picture taken on August 7, 2012. To match story CHINA-THREEGORGES/ REUTERS/Carlos Barria (CHINA - Tags: POLITICS ENVIRONMENT BUSINESS ENERGY TPX IMAGES OF THE DAY MARITIME)

A fisherman walks with his catch on the banks of the Yangtze River, near the Three Gorges dam in Yichang, Hubei province August 8, 2012. The environmental problems associated with the Three Gorges dam illustrate China's energy dilemma: To move away from its reliance on coal-fired power plants, Beijing says it has to develop cleaner forms of power. Hydropower is the most cost-effective way China can meet its energy needs, but its problems are still unfolding. China built the dam to tame flooding on the Yangtze, improve shipping and produce pollutant-free power. The dam has a total capacity of 22.5 GW, equivalent to burning 50 million tonnes of coal, according to the Three Gorges' Project State Assessment Report. The dam cost China more than $50 billion and displaced 1.4 million people while another 100,000 people may be moved from Hubei and the southwestern municipality of Chongqing in the next three to five years due to geological risks an official said in April. The number of geological disasters has risen 70 percent since the reservoir reached its maximum height of 175 metres, he said. Picture taken on August 9, 2012. To match story CHINA-THREEGORGES/ REUTERS/Carlos Barria (CHINA - Tags: POLITICS ENVIRONMENT BUSINESS ENERGY TPX IMAGES OF THE DAY)

A woman looks at the Yangtze River as she stands onboard a boat near Badong, 100km (62 miles) from the Three Gorges dam in Hubei province August 7, 2012. The environmental problems associated with the Three Gorges dam illustrate China's energy dilemma: To move away from its reliance on coal-fired power plants, Beijing says it has to develop cleaner forms of power. Hydropower is the most cost-effective way China can meet its energy needs, but its problems are still unfolding. China built the dam to tame flooding on the Yangtze, improve shipping and produce pollutant-free power. The dam has a total capacity of 22.5 GW, equivalent to burning 50 million tonnes of coal, according to the Three Gorges' Project State Assessment Report. The dam cost China more than $50 billion and displaced 1.4 million people while another 100,000 people may be moved from Hubei and the southwestern municipality of Chongqing in the next three to five years due to geological risks an official said in April. The number of geological disasters has risen 70 percent since the reservoir reached its maximum height of 175 metres, he said. Picture taken on August 7, 2012. To match story CHINA-THREEGORGES/ REUTERS/Carlos Barria (CHINA - Tags: POLITICS ENVIRONMENT BUSINESS ENERGY)

People look at the Yangtze River as they stand on a bridge in Badong city, 100km (62 miles) from the Three Gorges dam in Hubei province August 7, 2012. The environmental problems associated with the Three Gorges dam illustrate China's energy dilemma: To move away from its reliance on coal-fired power plants, Beijing says it has to develop cleaner forms of power. Hydropower is the most cost-effective way China can meet its energy needs, but its problems are still unfolding. China built the dam to tame flooding on the Yangtze, improve shipping and produce pollutant-free power. The dam has a total capacity of 22.5 GW, equivalent to burning 50 million tonnes of coal, according to the Three Gorges' Project State Assessment Report. The dam cost China more than $50 billion and displaced 1.4 million people while another 100,000 people may be moved from Hubei and the southwestern municipality of Chongqing in the next three to five years due to geological risks an official said in April. The number of geological disasters has risen 70 percent since the reservoir reached its maximum height of 175 metres, he said. Picture taken on August 7, 2012. To match story CHINA-THREEGORGES/ REUTERS/Carlos Barria (CHINA - Tags: POLITICS ENVIRONMENT BUSINESS ENERGY)

A view of the outskirts of Badong city, on the banks of the Yangtze River, 100km (62 miles) from the Three Gorges dam in Hubei province August 7, 2012. The environmental problems associated with the Three Gorges dam illustrate China's energy dilemma: To move away from its reliance on coal-fired power plants, Beijing says it has to develop cleaner forms of power. Hydropower is the most cost-effective way China can meet its energy needs, but its problems are still unfolding. China built the dam to tame flooding on the Yangtze, improve shipping and produce pollutant-free power. The dam has a total capacity of 22.5 GW, equivalent to burning 50 million tonnes of coal, according to the Three Gorges' Project State Assessment Report. The dam cost China more than $50 billion and displaced 1.4 million people while another 100,000 people may be moved from Hubei and the southwestern municipality of Chongqing in the next three to five years due to geological risks an official said in April. The number of geological disasters has risen 70 percent since the reservoir reached its maximum height of 175 metres, he said. Picture taken on August 7, 2012. To match story CHINA-THREEGORGES/ REUTERS/Carlos Barria (CHINA - Tags: POLITICS ENVIRONMENT BUSINESS ENERGY)

A man fishes at the Yangtze River near the Three Gorges dam in Yichang, Hubei province August 9, 2012. The environmental problems associated with the Three Gorges dam illustrate China's energy dilemma: To move away from its reliance on coal-fired power plants, Beijing says it has to develop cleaner forms of power. Hydropower is the most cost-effective way China can meet its energy needs, but its problems are still unfolding. China built the dam to tame flooding on the Yangtze, improve shipping and produce pollutant-free power. The dam has a total capacity of 22.5 GW, equivalent to burning 50 million tonnes of coal, according to the Three Gorges' Project State Assessment Report. The dam cost China more than $50 billion and displaced 1.4 million people while another 100,000 people may be moved from Hubei and the southwestern municipality of Chongqing in the next three to five years due to geological risks an official said in April. The number of geological disasters has risen 70 percent since the reservoir reached its maximum height of 175 metres, he said. Picture taken on August 9, 2012. To match story CHINA-THREEGORGES/ REUTERS/Carlos Barria (CHINA - Tags: POLITICS ENVIRONMENT BUSINESS ENERGY)

A man washes his hands next to a ship in Fengjie, on the banks of the Yangtze River, 170km (105 miles) from the Three Gorges dam, Chongqing province August 7, 2012. The environmental problems associated with the Three Gorges dam illustrate China's energy dilemma: To move away from its reliance on coal-fired power plants, Beijing says it has to develop cleaner forms of power. Hydropower is the most cost-effective way China can meet its energy needs, but its problems are still unfolding. China built the dam to tame flooding on the Yangtze, improve shipping and produce pollutant-free power. The dam has a total capacity of 22.5 GW, equivalent to burning 50 million tonnes of coal, according to the Three Gorges' Project State Assessment Report. The dam cost China more than $50 billion and displaced 1.4 million people while another 100,000 people may be moved from Hubei and the southwestern municipality of Chongqing in the next three to five years due to geological risks an official said in April. The number of geological disasters has risen 70 percent since the reservoir reached its maximum height of 175 metres, he said. Picture taken on August 7, 2012. To match story CHINA-THREEGORGES/ REUTERS/Carlos Barria (CHINA - Tags: POLITICS ENVIRONMENT BUSINESS ENERGY MARITIME)