Air pollution, sewage and smeared donuts
Beijing shutters own coal-fired power plant in an effort to tackle rampant air pollution in China.
Faced with one of the worst droughts in history, a Texas town unveils a $13 million program to turn sewage into drinking water.
Cyber security experts develop a prototype to protect cars from sophisticated hacker attacks.
Dutch designers build a motorized vehicle that fish can drive.
Oregonians will vote in November on a measure to legalize marijuana.
Portland-area police are stumped by a weeks-long vandalism spree involving sticky sweet baked treats.