China's planting a Great Green Wall [1], with another 66 billion trees. However it's struggling with dropping groundwater and species monoculture [2]. [1] http

China's planting a Great Green Wall [1], with another 66 billion trees. However it's struggling with dropping groundwater and species monoculture [2]. [1] https://en.wikipedia.org/wiki/Three-North_Shelter_Forest_Program https://en.wikipedia.org/wiki/Three-North_Shelter_Forest_Pro... [2] https://news.nationalgeographic.com/2017/04/china-great-green-wall-gobi-tengger-desertification/ https://news.nationalgeographic.com/2017/04/china-great-gree...