According to this brochure, the world is now facing water challenges on a global scale. Climate change will continue to affect our water resources, at a time when the world is still struggling to achieve water-related millennium development goals (MDGs). Japanese culture and society were shaped in a diverse natural environment with climates ranging from subtropical to subarctic. Subject to recurring droughts and floods, Japan has learned to efficiently use and share water, and has developed various water technologies with a strong sense of thrift. The Japanese experience in water management is relevant to the many countries currently facing major water challenges, and this document shares that experience.