Fire extinguisher had been developed by DuPont and the US Army in 1954. Both 1211 and 1301 work by inhibiting the chain reaction of the fire, and in the case of Halon 1211, cooling class A fuels as well. Halon is still in use today but is falling out of favor for many uses due to its environmental impact. Europe and Australia have severely restricted its use, since the Montreal Protocol of 1987. Less severe restrictions have been implemented in the United States, the Middle East, and Asia. Internationally there are several accepted classification methods for hand-held fire extinguisher. Each classification is
Green Lantern: Circle of Fire Green Lantern: Circle of Fire "Circle of Fire" is a story arc that ran through a two-issue, self-titled comic book miniseries and five one-shot comics starring Green Lantern (Kyle Rayner) that was published by DC Comics in October 2000. It consists of two bookend issues, titled "Green Lantern: Circle of Fire", and five issues in between in each of which a brand new Green Lantern Corps member pairs up with an established DC superhero. These other heroes include Power Girl, Adam Strange, Firestorm, the Atom, and Kyle Rayner. The bookend issues and two of the team-up issues were written by