Coordinating the UN's work on water and sanitation

World Toilet Day 2018: When nature calls

World Toilet Day 2018 – ‘When nature calls’ – to focus on nature-based sanitation solutions.
Where there is a lack of sanitation, human waste often returns to the environment untreated, affecting human health and degrading ecosystems.

If we listen to nature, we can clearly hear the message that we need to rapidly improve the sustainability of our communities. This World Toilet Day, we will discover that by working in harmony with natural processes, we can find nature-based solutions to some of the sanitation challenges we face in the 21st century.