LONDON - Diesel fumes cause cancer, the World Health Organization's cancer agency declared Tuesday, a ruling it said could make exhaust as important a public health threat as secondhand smoke. The ...

For the best experience, please enable JavaScript in your browser settings. NAIROBI: On Friday January 15, I spend nearly one hour at the GPO bus stop in Nairobi's ...

When Caltrain started transitioning away from diesel trains about a year ago, Josh Apte realized it would be a good opportunity to start measuring how air pollution levels change before and after ...

Areli Sanchez's daughter, Aida, used to be one of 20 million American kids who ride a diesel bus to school each day. Aida has asthma. When she was little, she complained about the smell and cloud of ...