A medical worker, a survivor Ebola, from the aid group Doctors Without Borders treats a baby girl suspected of having contracting the virus in Liberia, January, 2015. Fortunately, the baby girl survived at last. Photo: yangtse.com - qq.com
 

An African American boy gives bottled water to armed riot policemen in Baltimore, Maryland, USA. Mourners gathered to remember a 25-year-old African American man who died a week later after being taken into police custody. The unexplained death brought thousands of protesters to the city's streets in protest of police violence. Photo: yangtse.com-qq.com
 

The Eiffel Tower is illuminated in the colors of the French flag to honor victims of Paris attacks on November 17, 2015 in Paris, France. At least 132 people were killed and some 350 injured in the terror attacks on November 13. Photo: Xinhua

A safety helmet left on the ground by firefighters. The dark smoke rises from the debris of two severe explosions at Binhai new district in Tianjin, China, August 12, 2015. Photo: Cui Meng/GT

A memorial with messages, candles, and flowers for the victims of the Germanwings plane crash in the French Alps can be seen at the airport in Düsseldorf on March 28, 2015. Photo: CFP
 

A father kisses his little daughter after surviving the hard earthquake on April 25, 2015 in Karthmandu, Nepal. Registering 8.1 on the Richter scale, the major earthquake hit Nepal, on April 25, killing more than 9,000 people at the latest count. Thousands of residents living in remote hillside villages were left to fend for themselves. Photo: yangtse.com - qq.com

A Danish policeman plays clapping games with a Syrian refugee girl on an empty highway. According to data, over 500,000 refugees journeyed into Europe in 2015. This scene with a kind police officer inspires hope for the thousands of other refugees still stuck in camps and dangerous limbo between national borders. Photo: yangtse.com - qq.com

Abdul Halim al-Attar shows his daughter a photo taken in Summer, 2015. He is a Syrian refugee who was photographed selling pens in the streets of Beirut with his daughter sleeping on his shoulder. His life was more difficult then and his daughter was only 4 years old. Now, he runs three businesses and helps other refugees after an online crowd-funding campaign in his name and collected $191,000. Photo: yangtse.com - qq.com

Over hundred rescuers pay tribute to the victims. The Eastern Star, which capsized June 1, 2015, is being hoisted from the river after rescuers righted it on June 6. The cruise ship left the eastern Chinese city of Nanjing bound for Chongqing Municipality on the upper reaches of the river, but sank "within one or two minutes" of being caught in freak weather in Jianli, Hubei Province of China, according to the ship's captain and chief engineer who survived the incident. The death toll from the sinking reaches 442, and 12 rescued. Photo: sina.com.cn

A giant heart is written over New Orleans by skywriter Nathan Hammond, at sunset May 2, 2015. We cannot always prevent disasters from happening, but we are all human, and as one family we will always have hope by our side. Photo: yangtse.com - qq.com

Tian Zeming, the 19-year-old survivor, buried under debris in the landslide at Hengtaiyu industrial park in Shenzhen, is pulled out by Luo Xingxing, a rescue worker from the Chinese People's Armed Police Resources Force in the early morning December 23. Tian is the first rescued survivor at the disaster site. Photo: CFP