Microplastics – pieces of plastic less than 5 millimeters – were found in 55 juvenile northern hogsucker fish in tributaries of the Cheat, Ohio and Monongahela Rivers.

United States energy secretary Chris Wright joined Wyoming's top officials on Friday, for what they called a historic day for rare earth mineral exploration.

U.S. Energy Secretary Chris Wright was in Ranchester, Wyoming, on Friday for the ribbon cutting to open the first U.S. rare ...

Wyoming's first new coal mine in 50 years is said to be operating soon but it won't rely on the fossil fuel to make money.