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Plants need nitrogen to grow, but they can’t just grab it from the air like we do with oxygen. If the soil doesn’t have enough, farmers have to add fertilizers—an expensive and environmentally tricky ...

ANGOLA, La. — Louisiana has carried out its first nitrogen gas execution on a man convicted of a killing decades ago, his lawyer says. The U.S. Supreme Court rejected a last-ditch effort to ...

Louisiana carried out its first execution in 15 years on Tuesday evening, using nitrogen gas for the first time amid Catholic criticism of both the death penalty itself and the mode of execution.

Nitrogen gas had only been used in death row executions four times before Tuesday, all in Alabama. Last year, the method was used to execute Carey Dale Grayson for the killing of Vickie DeBlieux ...

The method of using lethal gas to carry out an execution has recently shifted from cyanide to nitrogen. Throughout history, the states have used five different execution methods: lethal ...

ANGOLA, La. (AP) — Louisiana used nitrogen gas to put a man to death Tuesday evening for a killing decades ago, marking the first time the state has used the method as it resumed executions after a 15 ...

Louisiana plans to execute Jessie Hoffman Jr. using nitrogen gas, marking its first execution since 2010. Hoffman's lawyers sought to halt the execution, citing religious and constitutional concerns.

Louisiana used nitrogen gas to put Jessie Hoffman Jr., 46, to death Tuesday evening in the state's first execution in 15 years. Nitrogen gas has been used just four other times to execute a person ...

March 19 (UPI) --Louisiana has carried out its first nitrogen hypoxia execution and its first execution in 15 years, killing Jessie Hoffman Jr. on Tuesday night for the 1996 kidnapping ...

Arkansas became the fifth state to authorize nitrogen hypoxia as a method of execution Tuesday, after Republican Gov. Sarah Huckabee Sanders signed legislation codifying the controversial method ...

MOST of the known reactions of molecular nitrogen take place under drastic conditions, involving high temperatures and pressures or electrical discharges. Only at room temperatures and atmospheric ...