World Water Week has opened in the Swedish capital, Stockholm.
International organisations and experts from 100 countries will be gathering to pool their expertise.
They will be swapping ideas and looking at concrete examples of providing and managing water in both developing countries and rich, industrially advanced countries.
Among the fields of concentration: infrastructure, climate and agriculture.
Seminars on the agenda include economic policy on defecation, corruption in public services, and the importance of storage capacity.
Seeking solutions will focus on a two-pronged approach:
Community participation with NGOs and government departments, the private sector and the media;
The other side is technological tools.
The aim of the symposium is to work towards cleaner water and better sanitation for people in poorer regions.