The Keystone pipeline was shut down Tuesday after it ruptured in North Dakota, halting the flow of millions of gallons of crude oil from Canada to refineries in the U.S.

A defective wood-burning stove, gas boiler or oil heating system can emit deadly carbon monoxide (CO) that can make the people in a room seriously ill or worse. Carbon monoxide is harmful when ...

A research team has successfully developed the world's first ammonia (NH3) gas sensor based on a copper bromide (CuBr) film ...