Despite more states shifting toward nitrogen hypoxia executions as lethal injection drugs become scarce, the high court remains divided over the legality of forcibly suffocating inmates.

Only one other state, Alabama, has carried out executions by nitrogen hypoxia, which involves pumping nitrogen gas into a facemask, causing the prisoner to suffocate. The method has been denounced by ...

Storage tank blanketing or padding by pumping inert nitrogen or other gases into the vapor space of a tank is designed to ...

Nitrogen hypoxia requires pumping pure nitrogen through a full-facepiece respirator until the person dies by lack of oxygen. Trump executive order on Smithsonian targets funding for programs with ...

the governor announced that the state was ready to execute people by use of a brand new experimental method where they place or they strap a mask over the inmates face and they pump nitrogen gas i ...

So he decided to try pumping nitrogen gas into the brew. Turns out this was a very good idea. After a few months of playing around with the right balance of bubble infusion, according to Chemical ...