Guangzhe Chen Senior Director, Water Global Practice, The World Bank Guangzhe Chen will be a Keynote Speaker at the Water and Development Congress & Exhibition 2017 in Buenos Aires, Argentina. Read full biography DevelopmentHealthKeynotesSociety Guangzhe Chen October 2, 2017 Maximising Financing for Achieving the SDG Ambition on Water Since 1990 an additional 2.1 billion people worldwide gained access to improved sanitation and, 91% of the global population now use improved drinking water sources. However, those who have access to Water and Sanitation Services ...