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A vertical view of classic simple design handmade wooden sign of toilet give direction to WC
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World Toilet Day 2025

Every year on 19 November, the world comes together to mark World Toilet Day, a UN-observed day since 2013 dedicated to shedding light on one of the most essential, yet often overlooked foundations of public health – safe sanitation.

Across the globe, around 3.4 billion people still live without safely managed sanitation. Lack of toilets leads to the spread of preventable diseases, threatens water sources, increases gender-based vulnerability, and limits children’s ability to learn in safe and healthy environments. These are daily realities for many around the world, with profound human consequences.

In line with this year’s theme, “sanitation in a changing world”, we join the world in advocating for safely managed sanitation systems with the aim of drawing closer to tackling the global sanitation crisis and achieving Sustainable Development Goal 6 (SDG 6) on ‘water and sanitation for all’. Investing in sanitation systems results in healthier communities, empowered households (especially women and girls), more time for education, and resilient cities.

Join us at one of our events today and explore our work on sanitation through the content below.

Events

At the events below, SEI experts Kim Andersson and Linus Dagerskog will present various aspects of SEI's work on sanitation. Linus Dagerskog will discuss lessons learned on how productive sanitation in Burkina Faso has strengthened livelihoods and eased tensions between farmers and herders, while Kim Andersson will highlight how climate-resilient sanitation solutions can both withstand climate impacts and reduce greenhouse gas emissions. Learn more below and join us!

Insights

Explore how circular water and sanitation solutions, time-saving WASH interventions and climate-resilient water management can improve health, equity and sustainability. These are examples of how smarter tools and evidence-based approaches – from the Resource Recovery Toolbox to resilience modelling in Iraq, can transform systems and strengthen communities.

Publications

Tools

Projects

Review selected projects focusing on sanitation.