The city is pumping out so much groundwater it's sinking 4 inches a year.
The cost of clean water and wastewater services has risen 41 percent over the last five years.
After two days, only 10 percent of the fire was contained.
Drone deliveries are becoming more likely in China, which could mean less air pollution.
Is footstep power the new solar power?
Three generating stations have been approved to burn diesel as power demand spikes this summer.
LED streetlights sound like a great idea. But there's a hitch.
A new study calculates the value of the trees that line the state’s roads.
One design firm imagines a skyscraper-free, self-sustaining urban landscape.