OZONE

Delicate layer

• ___ hole

• ___ hole (modern worry)

• ___ layer

• ___ layer (upper atmosphere part)

• ___ holes, better put up my umbrella! (B-52's lyric)

• Hole locale

• 22-mile-high layer

• A form of oxygen.

• A greenhouse gas

• A high flier may fly in it

• A layer with a hole

• Absorber of ultraviolet radiation

• Absorber of ultraviolet rays

• Air

• Allotrope of element #8

• Allotrope of oxygen

• Allotropic form of element No. 8

• Allotropic form of oxygen

• Allotropic greenhouse gas

• Atmosphere component

• Atmosphere layer

• Atmospheric concern

• Atmospheric gas

• Atmospheric layer of note

• Atmospheric layer with a hole in it

• Bleaching agent

• Blue gas

• Bluish gas

• Certain atmospheric gas

• Certain atmospheric layer

• Certain layer

• Chlorofluorocarbons deplete it

• Clear, fresh air

• Commander Cody album Tales from the ___

• Composition of an endangered layer

• Contents of a sensitive layer

• Controversial stratum

• Corrosive substance

• Critical layer

• Damaged layer

• Deep blue magnetic liquid

• Depleted layer

• Diminishing layer

• Dog days pollutant

• Dwindling gas in the stratosphere

• Earth protector

• Earth's ___ layer

• Eco-worry

• Ecologist's concern

• Electrical storm byproduct

• Endangered air

• Endangered atmospheric layer

• Endangered layer

• Environmentalist's concern

• EPA concern

• Famed form of oxygen

• Form of oxygen

• Form of oxygen in the news

• Form of oxygen with a sharp odor

• Fragile atmosphere layer

• Fragile layer

• Fresh air

• Fresh air, informally

• Fresh air, slangily

• Fresh pure air

• Gas in a layer

• Gas that both protects and pollutes

• Gas used to reduce bacteria on fruits and vegetables

• Gas with a penetrating odor

• Global warming factor

• Global-warming buzzword

• Greenhouse gas

• Heavy oxygen

• Hole site

• Holey layer

• Imperiled layer

• Important layer

• Important type of layer

• It protects everybody

• It's overhead

• It's up in the air

• Its gap should be minded

• Kind of hole

• Kind of hole or layer

• Kind of layer

• Kind of layer protecting the earth

• Layer discussed in An Inconvenient Truth

• Layer in environmental news

• Layer in the atmosphere

• Layer in the news

• Layer of concern

• Layer of concern to ecologists

• Layer of note

• Layer on top of us all

• Layer that absorbs ultraviolet rays

• Layer that filters out UV rays

• Layer that screens ultraviolet rays

• Layer to be concerned about

• Layer up high

• Layer with a hole

• Layer with a hole in it

• Layer with a problematic hole

• Lightning by-product

• Lightning strike by-product

• Low-level pollution or high-level protection

• Molecule also called trioxygen

• Molecule formed by lightning

• Much discussed layer

• Noted form of oxygen

• Noted pale-blue gas

• O___3, chemically speaking

• O-O-O

• Odorous oxygen

• Oft-discussed layer

• Oxygen allotrope

• Oxygen with a weak chlorine odor

• Oxygen with an odor

• Pale blue gas

• Pale blue, poisonous gas

• Part of the stratosphere

• Photochemical smog component

• Precious layer

• Protection around the world?

• Protective layer

• Protective shield makeup

• Protective stratosphere

• Pungent gas

• Pure air colloq.

• Radiation reducer

• Radiation-reducing layer

• Ray blocker

• Refreshing air

• Sensitive layer

• Shrinking layer

• Site of a worrisome hole

• Smog ingredient

• Space cadet's place?

• Space-case place

• Stratosphere gas

• Stratosphere layer

• Stratosphere substance

• Subject of environmentalist study

• Sun screen

• Swimming-pool sanitizer

• Tailpipe emissions threaten ___ layer

• There's a hole in it

• Thinning atmospheric layer

• Threatened atmosphere layer

• Threatened layer

• Thunderstorm by-product

• Thunderstorm residue

• Triatomic form of element #8

• Triatomic form of oxygen

• Triatomic greenhouse gas

• Triatomic molecule

• Triatomic oxygen

• Triatomic pollutant

• Trioxygen molecule

• Type of layer or hole

• Type of oxygen

• Ultraviolet blocker

• Ultraviolet filter

• Ultraviolet Index factor

• Ultraviolet light filter

• Ultraviolet radiation absorber

• Ultraviolet ray absorber

• Ultraviolet ray blocker

• Ultraviolet-ray screen

• Upper atmosphere gas

• Upper atmosphere layer

• UV blocker

• UV filterer

• UV ray absorber

• UV ray blocker

• UV-absorbing layer

• Vehicle emissions affect ___ layer

• Vehicle emissions threaten ___ layer

• Water purifier

• Water sterilizer

• What CFC's deplete

• Wizard's land joined part of the upper atmosphere (5)

• Word with hole or layer

• Word with layer and hole

• A colorless gas (O3) soluble in alkalis and cold water

• A strong oxidizing agent

• Can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation)