PHOENIX — Half of the water from the 91st Avenue Wastewater Treatment Plant is sent to the human-made wetlands known as Tres Rios before it can be reintroduced into the environment. Tres Rios is a ...
In downtown San Francisco, in a cavernous garage that was once a Honda dealership, a gleaming white-and-blue appliance about the size of a commercial refrigerator is being prepared for transport to a ...