Humans are kind of gross. We collectively create a constant stream of waste that threatens city-dwellers with plague and pestilence unless it is safely carried away. Sewers convert that figurative ...

Atmospheric rivers almost guarantee that San Francisco, with its sewage system, will dump millions of gallons of raw sewage ...

To turn human waste into a usable fuel, Firefly uses a method called hydrothermal liquefaction, which is good for wet waste. By combining high pressure and heat, it converts the sewage into ...

Poop can also power vehicles. The UK’s first “poo-bus” hit the road in Bristol in 2015. The bus runs on biomethane gas from sewage and inedible food waste. The ideal, healthy poop is the ...

“We’re the Disneyland of poop,” said Bud Cranor ... A continuous sample of raw sewage is collected throughout the day. The on-site lab does not currently allow for pathogen testing, though ...

the prospect of poop-powered planes is attracting attention. While sustainable aviation fuel (SAF) is not new, the idea of using sewage – an abundant and unavoidable waste – is a novelty.