Chlorofluorocarbons are destroying the ozone layer, but propane, which bonds to them, could be used to remove them from the atmosphere.
How do we clean up the ozone layer? Find out on this Moment of Science.
If you’ve ever seen movies about World War I, you know that the soldiers in the trenches often wore bulbous gas masks that made them look like human insects. The masks were necessary to protect them from chemical weapons such as chlorine gas, a noxious substance that could almost instantly suffocate unprotected victims.