Each year Yi Jiefeng does what she can to stop China turning into a desert. For the last 12 years the native of Shanghai has planted saplings in Inner Mongolia trying to reforest the region, but also to keep the memory of her dead son alive.
Full story: edition.cnn.com/2014/10/10/world/asia/greenlife-yi-jiefang-profile-above-and-beyond/index.html
Producer: Steven Jiang
Cameraman: CY Xu