Last summer, a Democratic state senator heard from hundreds of constituents in southeast Portland who were concerned about NW ...

A growing number of automobiles and industries are expected to fuel the demand for air pollution control systems. In order to ...

While some argue that natural gas can serve as a bridge from coal to cleaner sources of energy argue it only delays climate mitigation efforts.

Louisiana will seek to resume carrying out death sentences in the coming months after a 15-year pause, this time using nitrogen gas as the execution method, the state’s attorney general said Tuesday.

Diesel engines operate more efficiently than gasoline-powered ones, and they're crucial to the U.S. economy. But does this ...

Iowa’s farmlands are hotbeds for greenhouse gases, with nitrous oxide accounting for 59% of agricultural emissions in 2022.

Eco-friendly alternatives to fossil fuels are venturing beyond Earth—and into space.

University of Maryland researchers just concluded that hydraulic fracturing – the process of shaking oil and gas free from below – could endanger the health of nearby residents by ...

Nitric oxide is essential to penile function, helping to facilitate erections by signaling vessels to widen and smooth ...

A recent study in the journal Science estimated that coal-fired power plant emissions from 1999 through 2020 led to 460,000 ...

Stronger diesel and heavy-duty vehicle regulations were also added to help the Air Pollution Control Division crack down on ...

Car owners sometimes find, to their dismay, that their catalytic converters have been stolen because of the platinum inside.