We've heard of off-grid toilets that macerate, compost, incinerate and electro-wrap. We even stumbled on one that ...

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Commissioned by the Bill and Melinda Gates Foundation, the G2RT toilet works without any connection to local sewage or water systems. About 3.6 billion people—almost half the world’s population—don’t ...

To flush or not to flush. That was the question that designers and ecologists were asking each other this week as hundreds of people — who spend a lot of time thinking about these things — convened ...