LEBANON, Pa. — Nitrogen-fixing microbes in corn have created a buzz in the crop world, but it remains to be seen whether they will prove beneficial enough for widespread adoption. Field trials so far ...

Demetrius Terrence Frazier was executed by state of Alabama, becoming the fourth person to die by nitrogen hypoxia. (Alabama Department of Corrections) The latest headlines from our reporters ...

A serial rapist and murderer was put to death by nitrogen gas in Alabama on Thursday, the fourth use of the controversial execution method in the southern US state. Demetrius Frazier, 52 ...