A federal judge on Friday refused to stop what would be the fourth nitrogen gas execution in the U.S., saying the inmate had ...

Scientists have developed a new type of sensor for wearable devices that could help people detect hazardous gases in real time. This breakthrough could lead to smartwatches, clothing, and other ...

NGO finds ‘exceedingly high’ readings a sign of need to transition to green transport, but overall level of pollutants dropped.

Heightened nitrogen availability in the diversified cropping systems helped manure supplant enough synthetic fertilizer to reduce emissions of nitrous oxide, a potent heat-trapping gas, by an ...

A federal judge has heard competing testimony over a request to block the nation's fourth execution using nitrogen gas.