Field Visit: Sanitation Innovation
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Watch this video from my trip to Durban, South Africa where I met with sanitation experts who had developed a safe and inexpensive alternative to the pit toilets used by many poorer families around the world.
Want to learn more?
Read previous versions of the Annual Letter
Three videos that explain this month’s big meeting at the U.N.
An update on the machine that turns feces into water.
See if you can beat my score on this quiz.
In our Annual Letter, Melinda and I wrote about what the future holds.
Looking back at 2013, I wanted to share a different kind of list.
This is my personal blog, where I share about the people I meet, the books I'm reading, and what I'm learning. I hope that you'll join the conversation.
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