Why We Need a Toilet Revolution
Four out of 10 people worldwide don't have a safe way to poop. Find out why we need a toilet revolution. We need new ideas to help reduce disease and find new ways to turn crap into valuable stuff, like fuel, fertilizer, and fresh water.
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Read previous versions of the Annual Letter
In our Annual Letter, Melinda and I wrote about what the future holds.
We’re not ready for it. But we can get there.
Vaccines, one of the best investments you can make for improving health.
This machine turns feces into water and electricity—and may save lives.
Sharks are wimps, compared to this beast.
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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