Related Clues:
- Certain hydrocarbon preferred by 'Boyhood' actor Hawkee?
- It covers the globe
- Gas in a stratospheric layer
- Colorless, odorless fuel gas
- Gas in eastern district of Kent in short supply
- Bluish 45-Down
- Atmosphere protector
- ___ layer
- Layer with a 'hole' in it
- Gas, about 28 gm?
- Flammable gas; eat hen (anagram)
- Gas in fuel
- Imperiled atmospheric layer
- Bracing air of old, now seen as potentially toxic
- Beginning to erupt, chief of clan producing gas