On a recent morning, near a ramen shop in East Williamsburg, at 0700 hours, a truck loaded with live chickens coughed diesel exhaust. Across the street, at the site of a former night club, in a room ...

The Chinese bus company couldn’t work it out. Some days when its buses merely crawled along Shanghai’s streets, their power consumption would go through the roof. The reason why was a mystery. So, a ...