John Sauer Deputy Director, WASH
PSI - Population Services International , United States
John Sauer is a Deputy Director for PSI’s water, sanitation, and hygiene (WASH) programs, where he drives market systems development initiatives that expand sustainable access to essential products and services for underserved communities.
Articles written by John Sauer
Why the World Needs a Sanitation Boom
37 26. November 2025
When we think about global development challenges, sanitation rarely makes the headlines. Yet, it is one of the most transformative investments a country can make—not just for health, but for economic growth, social progress, and environmental sustainability. Some argue that sanitation is more an economic issue than a health issue. Our experience supporting market-based sanitation activities suggests this is true. When sanitation markets thrive, new products and innovations enter the market, jobs are created, supply chains expand, and governments invest. The ripple effect is enormous.
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