Samuel Ndubuisi Brown, Youth leader in Africa Green Climate Bank& Sustainable Housing Development Nigeria-Africa,Nigeria. His project was selected for APGYD. During the Acceleration Week for Global Youth Development , Samuel Ndubuisi Brown introduced Africa Green Climate Bank& Sustainable Housing Development in Nigeria-Africa, this program aims to combat dual challenges of population growth and climate change faced by Nigeria.(Camera: Bai Yang, Lin Tianyu, Xu Danyang; Editor: Wang Shuocheng)