The Bhopal accident was where 15,000 Indians were killed when a valve was turned and pure insecticide was vented into the atmospere. Union Carbide paid the bill but changed their name to Praxair to salvage their "good name". I worked form the Semiconductor division which was closed in 2002 because it wasn't meeting margin goals.
You're right. Praxair, Air Liquide, BOC and other gas industrial giants can solve this problem.