Reducing, treating and reusing wastewater are important routes to achieving sustainable access to water for all, but the practices have not yet caught on.
Globally, the majority of wastewater is not collected and in developing countries, 90% flows untreated into rivers, lakes and coastal zones. This threatens the safety of drinking water for people living in those areas, as well as their health and food security.
But wastewater is a valuable resource. When it is safely treated and reused, the health and wellbeing of consumers, farmers and other users are protected, and the strain of securing sustainable water access is reduced.
So what are NGOs doing to promote ways to save water – and to treat and reuse it – in the global south? Why is so little wastewater treated and reused today? Are changes in behaviour needed? And how can farmers - the biggest users of water worldwide – be encouraged to reduce and reuse?
Join an expert panel on Wednesday 22 March from 3-4.30pm GMT, to discuss these questions and more.
The live chat is not video or audio-enabled but will take place in the comments section (below). Want to recommend someone for the panel or ask a question in advance? Get in touch via globaldevpros@theguardian.com or @GuardianGDP on Twitter. Follow the discussion using the hashtag #globaldevlive.