A Chinese inventor and his solar toilet drew media and venture capitalists'attention at a "toilet fair" hosted by the Bill and Melinda Gates Foundation in Seattle. The Fair aims to inspire collaboration around the goal of delivering a sustainable-use toilet for the 2 1/2 billion people worldwide who don't have access to sanitation.

Credits:
Reporter: Chen Jia
Voice over: Derek Bosko
Video: Haidan Hu
Supervising producer: Calvin Zhou
Senior Producer: Larry Lee, Ji Tao